1821881250

素因数分解:

$2^1\times 3^2\times 5^5\times 7^2\times {\mathrm{661}}^1$

素因数の和:708

約数の個数: 216

約数和(自身を含む): 5748171156

約数和(自身を除く): 3926289906

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 49, 50, 63, 70, 75, 90, 98, 105, 125, 126, 147, 150, 175, 210, 225, 245, 250, 294, 315, 350, 375, 441, 450, 490, 525, 625, 630, 661, 735, 750, 875, 882, 1050, 1125, 1225, 1250, 1322, 1470, 1575, 1750, 1875, 1983, 2205, 2250, 2450, 2625, 3125, 3150, 3305, 3675, 3750, 3966, 4375, 4410, 4627, 5250, 5625, 5949, 6125, 6250, 6610, 7350, 7875, 8750, 9254, 9375, 9915, 11025, 11250, 11898, 12250, 13125, 13881, 15750, 16525, 18375, 18750, 19830, 21875, 22050, 23135, 26250, 27762, 28125, 29745, 30625, 32389, 33050, 36750, 39375, 41643, 43750, 46270, 49575, 55125, 56250, 59490, 61250, 64778, 65625, 69405, 78750, 82625, 83286, 91875, 97167, 99150, 110250, 115675, 131250, 138810, 148725, 153125, 161945, 165250, 183750, 194334, 196875, 208215, 231350, 247875, 275625, 291501, 297450, 306250, 323890, 347025, 393750, 413125, 416430, 459375, 485835, 495750, 551250, 578375, 583002, 694050, 743625, 809725, 826250, 918750, 971670, 1041075, 1156750, 1239375, 1378125, 1457505, 1487250, 1619450, 1735125, 2065625, 2082150, 2429175, 2478750, 2756250, 2891875, 2915010, 3470250, 3718125, 4048625, 4131250, 4858350, 5205375, 5783750, 6196875, 7287525, 7436250, 8097250, 8675625, 10410750, 12145875, 12393750, 14459375, 14575050, 17351250, 18590625, 20243125, 24291750, 26026875, 28918750, 36437625, 37181250, 40486250, 43378125, 52053750, 60729375, 72875250, 86756250, 101215625, 121458750, 130134375, 182188125, 202431250, 260268750, 303646875, 364376250, 607293750, 910940625, 1821881250]

約数ペア:

[(1, 1821881250), (2, 910940625), (3, 607293750), (5, 364376250), (6, 303646875), (7, 260268750), (9, 202431250), (10, 182188125), (14, 130134375), (15, 121458750), (18, 101215625), (21, 86756250), (25, 72875250), (30, 60729375), (35, 52053750), (42, 43378125), (45, 40486250), (49, 37181250), (50, 36437625), (63, 28918750), (70, 26026875), (75, 24291750), (90, 20243125), (98, 18590625), (105, 17351250), (125, 14575050), (126, 14459375), (147, 12393750), (150, 12145875), (175, 10410750), (210, 8675625), (225, 8097250), (245, 7436250), (250, 7287525), (294, 6196875), (315, 5783750), (350, 5205375), (375, 4858350), (441, 4131250), (450, 4048625), (490, 3718125), (525, 3470250), (625, 2915010), (630, 2891875), (661, 2756250), (735, 2478750), (750, 2429175), (875, 2082150), (882, 2065625), (1050, 1735125), (1125, 1619450), (1225, 1487250), (1250, 1457505), (1322, 1378125), (1470, 1239375), (1575, 1156750), (1750, 1041075), (1875, 971670), (1983, 918750), (2205, 826250), (2250, 809725), (2450, 743625), (2625, 694050), (3125, 583002), (3150, 578375), (3305, 551250), (3675, 495750), (3750, 485835), (3966, 459375), (4375, 416430), (4410, 413125), (4627, 393750), (5250, 347025), (5625, 323890), (5949, 306250), (6125, 297450), (6250, 291501), (6610, 275625), (7350, 247875), (7875, 231350), (8750, 208215), (9254, 196875), (9375, 194334), (9915, 183750), (11025, 165250), (11250, 161945), (11898, 153125), (12250, 148725), (13125, 138810), (13881, 131250), (15750, 115675), (16525, 110250), (18375, 99150), (18750, 97167), (19830, 91875), (21875, 83286), (22050, 82625), (23135, 78750), (26250, 69405), (27762, 65625), (28125, 64778), (29745, 61250), (30625, 59490), (32389, 56250), (33050, 55125), (36750, 49575), (39375, 46270), (41643, 43750)]