31819320

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{523}}^1$

素因数の和:566

約数の個数: 144

約数和(自身を含む): 112193640

約数和(自身を除く): 80374320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 45, 52, 60, 65, 72, 78, 90, 104, 117, 120, 130, 156, 169, 180, 195, 234, 260, 312, 338, 360, 390, 468, 507, 520, 523, 585, 676, 780, 845, 936, 1014, 1046, 1170, 1352, 1521, 1560, 1569, 1690, 2028, 2092, 2340, 2535, 2615, 3042, 3138, 3380, 4056, 4184, 4680, 4707, 5070, 5230, 6084, 6276, 6760, 6799, 7605, 7845, 9414, 10140, 10460, 12168, 12552, 13598, 15210, 15690, 18828, 20280, 20397, 20920, 23535, 27196, 30420, 31380, 33995, 37656, 40794, 47070, 54392, 60840, 61191, 62760, 67990, 81588, 88387, 94140, 101985, 122382, 135980, 163176, 176774, 188280, 203970, 244764, 265161, 271960, 305955, 353548, 407940, 441935, 489528, 530322, 611910, 707096, 795483, 815880, 883870, 1060644, 1223820, 1325805, 1590966, 1767740, 2121288, 2447640, 2651610, 3181932, 3535480, 3977415, 5303220, 6363864, 7954830, 10606440, 15909660, 31819320]

約数ペア:

[(1, 31819320), (2, 15909660), (3, 10606440), (4, 7954830), (5, 6363864), (6, 5303220), (8, 3977415), (9, 3535480), (10, 3181932), (12, 2651610), (13, 2447640), (15, 2121288), (18, 1767740), (20, 1590966), (24, 1325805), (26, 1223820), (30, 1060644), (36, 883870), (39, 815880), (40, 795483), (45, 707096), (52, 611910), (60, 530322), (65, 489528), (72, 441935), (78, 407940), (90, 353548), (104, 305955), (117, 271960), (120, 265161), (130, 244764), (156, 203970), (169, 188280), (180, 176774), (195, 163176), (234, 135980), (260, 122382), (312, 101985), (338, 94140), (360, 88387), (390, 81588), (468, 67990), (507, 62760), (520, 61191), (523, 60840), (585, 54392), (676, 47070), (780, 40794), (845, 37656), (936, 33995), (1014, 31380), (1046, 30420), (1170, 27196), (1352, 23535), (1521, 20920), (1560, 20397), (1569, 20280), (1690, 18828), (2028, 15690), (2092, 15210), (2340, 13598), (2535, 12552), (2615, 12168), (3042, 10460), (3138, 10140), (3380, 9414), (4056, 7845), (4184, 7605), (4680, 6799), (4707, 6760), (5070, 6276), (5230, 6084)]