18930291280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^3\times {\mathrm{34499}}^1$

素因数の和:34569

約数の個数: 80

約数和(自身を含む): 46459080000

約数和(自身を除く): 27528788720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 722, 760, 1444, 1520, 1805, 2888, 3610, 5776, 6859, 7220, 13718, 14440, 27436, 28880, 34295, 34499, 54872, 68590, 68998, 109744, 137180, 137996, 172495, 274360, 275992, 344990, 548720, 551984, 655481, 689980, 1310962, 1379960, 2621924, 2759920, 3277405, 5243848, 6554810, 10487696, 12454139, 13109620, 24908278, 26219240, 49816556, 52438480, 62270695, 99633112, 124541390, 199266224, 236628641, 249082780, 473257282, 498165560, 946514564, 996331120, 1183143205, 1893029128, 2366286410, 3786058256, 4732572820, 9465145640, 18930291280]

約数ペア:

[(1, 18930291280), (2, 9465145640), (4, 4732572820), (5, 3786058256), (8, 2366286410), (10, 1893029128), (16, 1183143205), (19, 996331120), (20, 946514564), (38, 498165560), (40, 473257282), (76, 249082780), (80, 236628641), (95, 199266224), (152, 124541390), (190, 99633112), (304, 62270695), (361, 52438480), (380, 49816556), (722, 26219240), (760, 24908278), (1444, 13109620), (1520, 12454139), (1805, 10487696), (2888, 6554810), (3610, 5243848), (5776, 3277405), (6859, 2759920), (7220, 2621924), (13718, 1379960), (14440, 1310962), (27436, 689980), (28880, 655481), (34295, 551984), (34499, 548720), (54872, 344990), (68590, 275992), (68998, 274360), (109744, 172495), (137180, 137996)]