256671870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{631}}^1$

素因数の和:810

約数の個数: 128

約数和(自身を含む): 764467200

約数和(自身を除く): 507795330

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 149, 182, 195, 210, 273, 298, 390, 447, 455, 546, 631, 745, 894, 910, 1043, 1262, 1365, 1490, 1893, 1937, 2086, 2235, 2730, 3129, 3155, 3786, 3874, 4417, 4470, 5215, 5811, 6258, 6310, 8203, 8834, 9465, 9685, 10430, 11622, 13251, 13559, 15645, 16406, 18930, 19370, 22085, 24609, 26502, 27118, 29055, 31290, 40677, 41015, 44170, 49218, 57421, 58110, 66255, 67795, 81354, 82030, 94019, 114842, 123045, 132510, 135590, 172263, 188038, 203385, 246090, 282057, 287105, 344526, 406770, 470095, 564114, 574210, 658133, 861315, 940190, 1222247, 1316266, 1410285, 1722630, 1974399, 2444494, 2820570, 3290665, 3666741, 3948798, 6111235, 6581330, 7333482, 8555729, 9871995, 12222470, 17111458, 18333705, 19743990, 25667187, 36667410, 42778645, 51334374, 85557290, 128335935, 256671870]

約数ペア:

[(1, 256671870), (2, 128335935), (3, 85557290), (5, 51334374), (6, 42778645), (7, 36667410), (10, 25667187), (13, 19743990), (14, 18333705), (15, 17111458), (21, 12222470), (26, 9871995), (30, 8555729), (35, 7333482), (39, 6581330), (42, 6111235), (65, 3948798), (70, 3666741), (78, 3290665), (91, 2820570), (105, 2444494), (130, 1974399), (149, 1722630), (182, 1410285), (195, 1316266), (210, 1222247), (273, 940190), (298, 861315), (390, 658133), (447, 574210), (455, 564114), (546, 470095), (631, 406770), (745, 344526), (894, 287105), (910, 282057), (1043, 246090), (1262, 203385), (1365, 188038), (1490, 172263), (1893, 135590), (1937, 132510), (2086, 123045), (2235, 114842), (2730, 94019), (3129, 82030), (3155, 81354), (3786, 67795), (3874, 66255), (4417, 58110), (4470, 57421), (5215, 49218), (5811, 44170), (6258, 41015), (6310, 40677), (8203, 31290), (8834, 29055), (9465, 27118), (9685, 26502), (10430, 24609), (11622, 22085), (13251, 19370), (13559, 18930), (15645, 16406)]