19968030

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:482

約数の個数: 96

約数和(自身を含む): 56878848

約数和(自身を除く): 36910818

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 31, 34, 45, 51, 62, 85, 90, 93, 102, 153, 155, 170, 186, 255, 279, 306, 310, 421, 465, 510, 527, 558, 765, 842, 930, 1054, 1263, 1395, 1530, 1581, 2105, 2526, 2635, 2790, 3162, 3789, 4210, 4743, 5270, 6315, 7157, 7578, 7905, 9486, 12630, 13051, 14314, 15810, 18945, 21471, 23715, 26102, 35785, 37890, 39153, 42942, 47430, 64413, 65255, 71570, 78306, 107355, 117459, 128826, 130510, 195765, 214710, 221867, 234918, 322065, 391530, 443734, 587295, 644130, 665601, 1109335, 1174590, 1331202, 1996803, 2218670, 3328005, 3993606, 6656010, 9984015, 19968030]

約数ペア:

[(1, 19968030), (2, 9984015), (3, 6656010), (5, 3993606), (6, 3328005), (9, 2218670), (10, 1996803), (15, 1331202), (17, 1174590), (18, 1109335), (30, 665601), (31, 644130), (34, 587295), (45, 443734), (51, 391530), (62, 322065), (85, 234918), (90, 221867), (93, 214710), (102, 195765), (153, 130510), (155, 128826), (170, 117459), (186, 107355), (255, 78306), (279, 71570), (306, 65255), (310, 64413), (421, 47430), (465, 42942), (510, 39153), (527, 37890), (558, 35785), (765, 26102), (842, 23715), (930, 21471), (1054, 18945), (1263, 15810), (1395, 14314), (1530, 13051), (1581, 12630), (2105, 9486), (2526, 7905), (2635, 7578), (2790, 7157), (3162, 6315), (3789, 5270), (4210, 4743)]