81645390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:163

約数の個数: 144

約数和(自身を含む): 233904528

約数和(自身を除く): 152259138

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 43, 45, 51, 73, 85, 86, 90, 102, 129, 146, 153, 170, 215, 219, 255, 258, 289, 306, 365, 387, 430, 438, 510, 578, 645, 657, 730, 731, 765, 774, 867, 1095, 1241, 1290, 1314, 1445, 1462, 1530, 1734, 1935, 2190, 2193, 2482, 2601, 2890, 3139, 3285, 3655, 3723, 3870, 4335, 4386, 5202, 6205, 6278, 6570, 6579, 7310, 7446, 8670, 9417, 10965, 11169, 12410, 12427, 13005, 13158, 15695, 18615, 18834, 21097, 21930, 22338, 24854, 26010, 28251, 31390, 32895, 37230, 37281, 42194, 47085, 53363, 55845, 56502, 62135, 63291, 65790, 74562, 94170, 105485, 106726, 111690, 111843, 124270, 126582, 141255, 160089, 186405, 189873, 210970, 223686, 266815, 282510, 316455, 320178, 372810, 379746, 480267, 533630, 559215, 632910, 800445, 907171, 949365, 960534, 1118430, 1600890, 1814342, 1898730, 2401335, 2721513, 4535855, 4802670, 5443026, 8164539, 9071710, 13607565, 16329078, 27215130, 40822695, 81645390]

約数ペア:

[(1, 81645390), (2, 40822695), (3, 27215130), (5, 16329078), (6, 13607565), (9, 9071710), (10, 8164539), (15, 5443026), (17, 4802670), (18, 4535855), (30, 2721513), (34, 2401335), (43, 1898730), (45, 1814342), (51, 1600890), (73, 1118430), (85, 960534), (86, 949365), (90, 907171), (102, 800445), (129, 632910), (146, 559215), (153, 533630), (170, 480267), (215, 379746), (219, 372810), (255, 320178), (258, 316455), (289, 282510), (306, 266815), (365, 223686), (387, 210970), (430, 189873), (438, 186405), (510, 160089), (578, 141255), (645, 126582), (657, 124270), (730, 111843), (731, 111690), (765, 106726), (774, 105485), (867, 94170), (1095, 74562), (1241, 65790), (1290, 63291), (1314, 62135), (1445, 56502), (1462, 55845), (1530, 53363), (1734, 47085), (1935, 42194), (2190, 37281), (2193, 37230), (2482, 32895), (2601, 31390), (2890, 28251), (3139, 26010), (3285, 24854), (3655, 22338), (3723, 21930), (3870, 21097), (4335, 18834), (4386, 18615), (5202, 15695), (6205, 13158), (6278, 13005), (6570, 12427), (6579, 12410), (7310, 11169), (7446, 10965), (8670, 9417)]