18611940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:357

約数の個数: 96

約数和(自身を含む): 56173824

約数和(自身を除く): 37561884

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 71, 85, 102, 142, 170, 204, 213, 255, 257, 284, 340, 355, 426, 510, 514, 710, 771, 852, 1020, 1028, 1065, 1207, 1285, 1420, 1542, 2130, 2414, 2570, 3084, 3621, 3855, 4260, 4369, 4828, 5140, 6035, 7242, 7710, 8738, 12070, 13107, 14484, 15420, 17476, 18105, 18247, 21845, 24140, 26214, 36210, 36494, 43690, 52428, 54741, 65535, 72420, 72988, 87380, 91235, 109482, 131070, 182470, 218964, 262140, 273705, 310199, 364940, 547410, 620398, 930597, 1094820, 1240796, 1550995, 1861194, 3101990, 3722388, 4652985, 6203980, 9305970, 18611940]

約数ペア:

[(1, 18611940), (2, 9305970), (3, 6203980), (4, 4652985), (5, 3722388), (6, 3101990), (10, 1861194), (12, 1550995), (15, 1240796), (17, 1094820), (20, 930597), (30, 620398), (34, 547410), (51, 364940), (60, 310199), (68, 273705), (71, 262140), (85, 218964), (102, 182470), (142, 131070), (170, 109482), (204, 91235), (213, 87380), (255, 72988), (257, 72420), (284, 65535), (340, 54741), (355, 52428), (426, 43690), (510, 36494), (514, 36210), (710, 26214), (771, 24140), (852, 21845), (1020, 18247), (1028, 18105), (1065, 17476), (1207, 15420), (1285, 14484), (1420, 13107), (1542, 12070), (2130, 8738), (2414, 7710), (2570, 7242), (3084, 6035), (3621, 5140), (3855, 4828), (4260, 4369)]