81657810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{983}}^1$

素因数の和:1080

約数の個数: 96

約数和(自身を含む): 232098048

約数和(自身を除く): 150440238

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 71, 78, 90, 117, 130, 142, 195, 213, 234, 355, 390, 426, 585, 639, 710, 923, 983, 1065, 1170, 1278, 1846, 1966, 2130, 2769, 2949, 3195, 4615, 4915, 5538, 5898, 6390, 8307, 8847, 9230, 9830, 12779, 13845, 14745, 16614, 17694, 25558, 27690, 29490, 38337, 41535, 44235, 63895, 69793, 76674, 83070, 88470, 115011, 127790, 139586, 191685, 209379, 230022, 348965, 383370, 418758, 575055, 628137, 697930, 907309, 1046895, 1150110, 1256274, 1814618, 2093790, 2721927, 3140685, 4536545, 5443854, 6281370, 8165781, 9073090, 13609635, 16331562, 27219270, 40828905, 81657810]

約数ペア:

[(1, 81657810), (2, 40828905), (3, 27219270), (5, 16331562), (6, 13609635), (9, 9073090), (10, 8165781), (13, 6281370), (15, 5443854), (18, 4536545), (26, 3140685), (30, 2721927), (39, 2093790), (45, 1814618), (65, 1256274), (71, 1150110), (78, 1046895), (90, 907309), (117, 697930), (130, 628137), (142, 575055), (195, 418758), (213, 383370), (234, 348965), (355, 230022), (390, 209379), (426, 191685), (585, 139586), (639, 127790), (710, 115011), (923, 88470), (983, 83070), (1065, 76674), (1170, 69793), (1278, 63895), (1846, 44235), (1966, 41535), (2130, 38337), (2769, 29490), (2949, 27690), (3195, 25558), (4615, 17694), (4915, 16614), (5538, 14745), (5898, 13845), (6390, 12779), (8307, 9830), (8847, 9230)]