19904430

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1$

素因数の和:370

約数の個数: 128

約数和(自身を含む): 61544448

約数和(自身を除く): 41640018

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 23, 26, 30, 35, 39, 42, 46, 65, 69, 70, 78, 91, 105, 115, 130, 138, 161, 182, 195, 210, 230, 273, 299, 317, 322, 345, 390, 455, 483, 546, 598, 634, 690, 805, 897, 910, 951, 966, 1365, 1495, 1585, 1610, 1794, 1902, 2093, 2219, 2415, 2730, 2990, 3170, 4121, 4186, 4438, 4485, 4755, 4830, 6279, 6657, 7291, 8242, 8970, 9510, 10465, 11095, 12363, 12558, 13314, 14582, 20605, 20930, 21873, 22190, 24726, 28847, 31395, 33285, 36455, 41210, 43746, 51037, 57694, 61815, 62790, 66570, 72910, 86541, 94783, 102074, 109365, 123630, 144235, 153111, 173082, 189566, 218730, 255185, 284349, 288470, 306222, 432705, 473915, 510370, 568698, 663481, 765555, 865410, 947830, 1326962, 1421745, 1531110, 1990443, 2843490, 3317405, 3980886, 6634810, 9952215, 19904430]

約数ペア:

[(1, 19904430), (2, 9952215), (3, 6634810), (5, 3980886), (6, 3317405), (7, 2843490), (10, 1990443), (13, 1531110), (14, 1421745), (15, 1326962), (21, 947830), (23, 865410), (26, 765555), (30, 663481), (35, 568698), (39, 510370), (42, 473915), (46, 432705), (65, 306222), (69, 288470), (70, 284349), (78, 255185), (91, 218730), (105, 189566), (115, 173082), (130, 153111), (138, 144235), (161, 123630), (182, 109365), (195, 102074), (210, 94783), (230, 86541), (273, 72910), (299, 66570), (317, 62790), (322, 61815), (345, 57694), (390, 51037), (455, 43746), (483, 41210), (546, 36455), (598, 33285), (634, 31395), (690, 28847), (805, 24726), (897, 22190), (910, 21873), (951, 20930), (966, 20605), (1365, 14582), (1495, 13314), (1585, 12558), (1610, 12363), (1794, 11095), (1902, 10465), (2093, 9510), (2219, 8970), (2415, 8242), (2730, 7291), (2990, 6657), (3170, 6279), (4121, 4830), (4186, 4755), (4438, 4485)]