275009980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{379}}^1$

素因数の和:539

約数の個数: 96

約数和(自身を含む): 680279040

約数和(自身を除く): 405269060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 73, 140, 142, 146, 284, 292, 355, 365, 379, 497, 511, 710, 730, 758, 994, 1022, 1420, 1460, 1516, 1895, 1988, 2044, 2485, 2555, 2653, 3790, 4970, 5110, 5183, 5306, 7580, 9940, 10220, 10366, 10612, 13265, 20732, 25915, 26530, 26909, 27667, 36281, 51830, 53060, 53818, 55334, 72562, 103660, 107636, 110668, 134545, 138335, 145124, 181405, 188363, 193669, 269090, 276670, 362810, 376726, 387338, 538180, 553340, 725620, 753452, 774676, 941815, 968345, 1883630, 1936690, 1964357, 3767260, 3873380, 3928714, 7857428, 9821785, 13750499, 19643570, 27500998, 39287140, 55001996, 68752495, 137504990, 275009980]

約数ペア:

[(1, 275009980), (2, 137504990), (4, 68752495), (5, 55001996), (7, 39287140), (10, 27500998), (14, 19643570), (20, 13750499), (28, 9821785), (35, 7857428), (70, 3928714), (71, 3873380), (73, 3767260), (140, 1964357), (142, 1936690), (146, 1883630), (284, 968345), (292, 941815), (355, 774676), (365, 753452), (379, 725620), (497, 553340), (511, 538180), (710, 387338), (730, 376726), (758, 362810), (994, 276670), (1022, 269090), (1420, 193669), (1460, 188363), (1516, 181405), (1895, 145124), (1988, 138335), (2044, 134545), (2485, 110668), (2555, 107636), (2653, 103660), (3790, 72562), (4970, 55334), (5110, 53818), (5183, 53060), (5306, 51830), (7580, 36281), (9940, 27667), (10220, 26909), (10366, 26530), (10612, 25915), (13265, 20732)]