64963600

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^2\times {\mathrm{31}}^2$

素因数の和:106

約数の個数: 135

約数和(自身を含む): 174631959

約数和(自身を除く): 109668359

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 40, 50, 52, 62, 65, 80, 100, 104, 124, 130, 155, 169, 200, 208, 248, 260, 310, 325, 338, 400, 403, 496, 520, 620, 650, 676, 775, 806, 845, 961, 1040, 1240, 1300, 1352, 1550, 1612, 1690, 1922, 2015, 2480, 2600, 2704, 3100, 3224, 3380, 3844, 4030, 4225, 4805, 5200, 5239, 6200, 6448, 6760, 7688, 8060, 8450, 9610, 10075, 10478, 12400, 12493, 13520, 15376, 16120, 16900, 19220, 20150, 20956, 24025, 24986, 26195, 32240, 33800, 38440, 40300, 41912, 48050, 49972, 52390, 62465, 67600, 76880, 80600, 83824, 96100, 99944, 104780, 124930, 130975, 161200, 162409, 192200, 199888, 209560, 249860, 261950, 312325, 324818, 384400, 419120, 499720, 523900, 624650, 649636, 812045, 999440, 1047800, 1249300, 1299272, 1624090, 2095600, 2498600, 2598544, 3248180, 4060225, 4997200, 6496360, 8120450, 12992720, 16240900, 32481800, 64963600]

約数ペア:

[(1, 64963600), (2, 32481800), (4, 16240900), (5, 12992720), (8, 8120450), (10, 6496360), (13, 4997200), (16, 4060225), (20, 3248180), (25, 2598544), (26, 2498600), (31, 2095600), (40, 1624090), (50, 1299272), (52, 1249300), (62, 1047800), (65, 999440), (80, 812045), (100, 649636), (104, 624650), (124, 523900), (130, 499720), (155, 419120), (169, 384400), (200, 324818), (208, 312325), (248, 261950), (260, 249860), (310, 209560), (325, 199888), (338, 192200), (400, 162409), (403, 161200), (496, 130975), (520, 124930), (620, 104780), (650, 99944), (676, 96100), (775, 83824), (806, 80600), (845, 76880), (961, 67600), (1040, 62465), (1240, 52390), (1300, 49972), (1352, 48050), (1550, 41912), (1612, 40300), (1690, 38440), (1922, 33800), (2015, 32240), (2480, 26195), (2600, 24986), (2704, 24025), (3100, 20956), (3224, 20150), (3380, 19220), (3844, 16900), (4030, 16120), (4225, 15376), (4805, 13520), (5200, 12493), (5239, 12400), (6200, 10478), (6448, 10075), (6760, 9610), (7688, 8450)]