72909980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:136

約数の個数: 144

約数和(自身を含む): 189260064

約数和(自身を除く): 116350084

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 37, 44, 52, 53, 55, 65, 74, 106, 110, 130, 143, 148, 169, 185, 212, 220, 260, 265, 286, 338, 370, 407, 481, 530, 572, 583, 676, 689, 715, 740, 814, 845, 962, 1060, 1166, 1378, 1430, 1628, 1690, 1859, 1924, 1961, 2035, 2332, 2405, 2756, 2860, 2915, 3380, 3445, 3718, 3922, 4070, 4810, 5291, 5830, 6253, 6890, 7436, 7579, 7844, 8140, 8957, 9295, 9620, 9805, 10582, 11660, 12506, 13780, 15158, 17914, 18590, 19610, 21164, 21571, 25012, 25493, 26455, 30316, 31265, 35828, 37180, 37895, 39220, 43142, 44785, 50986, 52910, 62530, 68783, 75790, 86284, 89570, 98527, 101972, 105820, 107855, 125060, 127465, 137566, 151580, 179140, 197054, 215710, 254930, 275132, 280423, 331409, 343915, 394108, 431420, 492635, 509860, 560846, 662818, 687830, 985270, 1121692, 1325636, 1375660, 1402115, 1657045, 1970540, 2804230, 3314090, 3645499, 5608460, 6628180, 7290998, 14581996, 18227495, 36454990, 72909980]

約数ペア:

[(1, 72909980), (2, 36454990), (4, 18227495), (5, 14581996), (10, 7290998), (11, 6628180), (13, 5608460), (20, 3645499), (22, 3314090), (26, 2804230), (37, 1970540), (44, 1657045), (52, 1402115), (53, 1375660), (55, 1325636), (65, 1121692), (74, 985270), (106, 687830), (110, 662818), (130, 560846), (143, 509860), (148, 492635), (169, 431420), (185, 394108), (212, 343915), (220, 331409), (260, 280423), (265, 275132), (286, 254930), (338, 215710), (370, 197054), (407, 179140), (481, 151580), (530, 137566), (572, 127465), (583, 125060), (676, 107855), (689, 105820), (715, 101972), (740, 98527), (814, 89570), (845, 86284), (962, 75790), (1060, 68783), (1166, 62530), (1378, 52910), (1430, 50986), (1628, 44785), (1690, 43142), (1859, 39220), (1924, 37895), (1961, 37180), (2035, 35828), (2332, 31265), (2405, 30316), (2756, 26455), (2860, 25493), (2915, 25012), (3380, 21571), (3445, 21164), (3718, 19610), (3922, 18590), (4070, 17914), (4810, 15158), (5291, 13780), (5830, 12506), (6253, 11660), (6890, 10582), (7436, 9805), (7579, 9620), (7844, 9295), (8140, 8957)]