20396250

素因数分解:

$2^1\times 3^2\times 5^4\times 7^2\times {\mathrm{37}}^1$

素因数の和:79

約数の個数: 180

約数和(自身を含む): 65974194

約数和(自身を除く): 45577944

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 37, 42, 45, 49, 50, 63, 70, 74, 75, 90, 98, 105, 111, 125, 126, 147, 150, 175, 185, 210, 222, 225, 245, 250, 259, 294, 315, 333, 350, 370, 375, 441, 450, 490, 518, 525, 555, 625, 630, 666, 735, 750, 777, 875, 882, 925, 1050, 1110, 1125, 1225, 1250, 1295, 1470, 1554, 1575, 1665, 1750, 1813, 1850, 1875, 2205, 2250, 2331, 2450, 2590, 2625, 2775, 3150, 3330, 3626, 3675, 3750, 3885, 4375, 4410, 4625, 4662, 5250, 5439, 5550, 5625, 6125, 6475, 7350, 7770, 7875, 8325, 8750, 9065, 9250, 10878, 11025, 11250, 11655, 12250, 12950, 13125, 13875, 15750, 16317, 16650, 18130, 18375, 19425, 22050, 23125, 23310, 26250, 27195, 27750, 30625, 32375, 32634, 36750, 38850, 39375, 41625, 45325, 46250, 54390, 55125, 58275, 61250, 64750, 69375, 78750, 81585, 83250, 90650, 91875, 97125, 110250, 116550, 135975, 138750, 161875, 163170, 183750, 194250, 208125, 226625, 271950, 275625, 291375, 323750, 407925, 416250, 453250, 485625, 551250, 582750, 679875, 815850, 971250, 1133125, 1359750, 1456875, 2039625, 2266250, 2913750, 3399375, 4079250, 6798750, 10198125, 20396250]

約数ペア:

[(1, 20396250), (2, 10198125), (3, 6798750), (5, 4079250), (6, 3399375), (7, 2913750), (9, 2266250), (10, 2039625), (14, 1456875), (15, 1359750), (18, 1133125), (21, 971250), (25, 815850), (30, 679875), (35, 582750), (37, 551250), (42, 485625), (45, 453250), (49, 416250), (50, 407925), (63, 323750), (70, 291375), (74, 275625), (75, 271950), (90, 226625), (98, 208125), (105, 194250), (111, 183750), (125, 163170), (126, 161875), (147, 138750), (150, 135975), (175, 116550), (185, 110250), (210, 97125), (222, 91875), (225, 90650), (245, 83250), (250, 81585), (259, 78750), (294, 69375), (315, 64750), (333, 61250), (350, 58275), (370, 55125), (375, 54390), (441, 46250), (450, 45325), (490, 41625), (518, 39375), (525, 38850), (555, 36750), (625, 32634), (630, 32375), (666, 30625), (735, 27750), (750, 27195), (777, 26250), (875, 23310), (882, 23125), (925, 22050), (1050, 19425), (1110, 18375), (1125, 18130), (1225, 16650), (1250, 16317), (1295, 15750), (1470, 13875), (1554, 13125), (1575, 12950), (1665, 12250), (1750, 11655), (1813, 11250), (1850, 11025), (1875, 10878), (2205, 9250), (2250, 9065), (2331, 8750), (2450, 8325), (2590, 7875), (2625, 7770), (2775, 7350), (3150, 6475), (3330, 6125), (3626, 5625), (3675, 5550), (3750, 5439), (3885, 5250), (4375, 4662), (4410, 4625)]