181718820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:386

約数の個数: 144

約数和(自身を含む): 570810240

約数和(自身を除く): 389091420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 59, 60, 71, 90, 118, 142, 177, 180, 213, 236, 241, 284, 295, 354, 355, 426, 482, 531, 590, 639, 708, 710, 723, 852, 885, 964, 1062, 1065, 1180, 1205, 1278, 1420, 1446, 1770, 2124, 2130, 2169, 2410, 2556, 2655, 2892, 3195, 3540, 3615, 4189, 4260, 4338, 4820, 5310, 6390, 7230, 8378, 8676, 10620, 10845, 12567, 12780, 14219, 14460, 16756, 17111, 20945, 21690, 25134, 28438, 34222, 37701, 41890, 42657, 43380, 50268, 51333, 56876, 62835, 68444, 71095, 75402, 83780, 85314, 85555, 102666, 125670, 127971, 142190, 150804, 153999, 170628, 171110, 188505, 205332, 213285, 251340, 255942, 256665, 284380, 307998, 342220, 377010, 426570, 511884, 513330, 615996, 639855, 754020, 769995, 853140, 1009549, 1026660, 1279710, 1539990, 2019098, 2559420, 3028647, 3079980, 4038196, 5047745, 6057294, 9085941, 10095490, 12114588, 15143235, 18171882, 20190980, 30286470, 36343764, 45429705, 60572940, 90859410, 181718820]

約数ペア:

[(1, 181718820), (2, 90859410), (3, 60572940), (4, 45429705), (5, 36343764), (6, 30286470), (9, 20190980), (10, 18171882), (12, 15143235), (15, 12114588), (18, 10095490), (20, 9085941), (30, 6057294), (36, 5047745), (45, 4038196), (59, 3079980), (60, 3028647), (71, 2559420), (90, 2019098), (118, 1539990), (142, 1279710), (177, 1026660), (180, 1009549), (213, 853140), (236, 769995), (241, 754020), (284, 639855), (295, 615996), (354, 513330), (355, 511884), (426, 426570), (482, 377010), (531, 342220), (590, 307998), (639, 284380), (708, 256665), (710, 255942), (723, 251340), (852, 213285), (885, 205332), (964, 188505), (1062, 171110), (1065, 170628), (1180, 153999), (1205, 150804), (1278, 142190), (1420, 127971), (1446, 125670), (1770, 102666), (2124, 85555), (2130, 85314), (2169, 83780), (2410, 75402), (2556, 71095), (2655, 68444), (2892, 62835), (3195, 56876), (3540, 51333), (3615, 50268), (4189, 43380), (4260, 42657), (4338, 41890), (4820, 37701), (5310, 34222), (6390, 28438), (7230, 25134), (8378, 21690), (8676, 20945), (10620, 17111), (10845, 16756), (12567, 14460), (12780, 14219)]