217421750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{503}}^1$

素因数の和:559

約数の個数: 128

約数和(自身を含む): 528353280

約数和(自身を除く): 310931530

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 25, 26, 35, 38, 50, 65, 70, 91, 95, 125, 130, 133, 175, 182, 190, 247, 250, 266, 325, 350, 455, 475, 494, 503, 650, 665, 875, 910, 950, 1006, 1235, 1330, 1625, 1729, 1750, 2275, 2375, 2470, 2515, 3250, 3325, 3458, 3521, 4550, 4750, 5030, 6175, 6539, 6650, 7042, 8645, 9557, 11375, 12350, 12575, 13078, 16625, 17290, 17605, 19114, 22750, 25150, 30875, 32695, 33250, 35210, 43225, 45773, 47785, 61750, 62875, 65390, 66899, 86450, 88025, 91546, 95570, 124241, 125750, 133798, 163475, 176050, 216125, 228865, 238925, 248482, 326950, 334495, 432250, 440125, 457730, 477850, 621205, 668990, 817375, 869687, 880250, 1144325, 1194625, 1242410, 1634750, 1672475, 1739374, 2288650, 2389250, 3106025, 3344950, 4348435, 5721625, 6212050, 8362375, 8696870, 11443250, 15530125, 16724750, 21742175, 31060250, 43484350, 108710875, 217421750]

約数ペア:

[(1, 217421750), (2, 108710875), (5, 43484350), (7, 31060250), (10, 21742175), (13, 16724750), (14, 15530125), (19, 11443250), (25, 8696870), (26, 8362375), (35, 6212050), (38, 5721625), (50, 4348435), (65, 3344950), (70, 3106025), (91, 2389250), (95, 2288650), (125, 1739374), (130, 1672475), (133, 1634750), (175, 1242410), (182, 1194625), (190, 1144325), (247, 880250), (250, 869687), (266, 817375), (325, 668990), (350, 621205), (455, 477850), (475, 457730), (494, 440125), (503, 432250), (650, 334495), (665, 326950), (875, 248482), (910, 238925), (950, 228865), (1006, 216125), (1235, 176050), (1330, 163475), (1625, 133798), (1729, 125750), (1750, 124241), (2275, 95570), (2375, 91546), (2470, 88025), (2515, 86450), (3250, 66899), (3325, 65390), (3458, 62875), (3521, 61750), (4550, 47785), (4750, 45773), (5030, 43225), (6175, 35210), (6539, 33250), (6650, 32695), (7042, 30875), (8645, 25150), (9557, 22750), (11375, 19114), (12350, 17605), (12575, 17290), (13078, 16625)]