28589440

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:192

約数の個数: 128

約数和(自身を含む): 77552640

約数和(自身を除く): 48963200

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 124, 128, 131, 155, 160, 176, 220, 248, 262, 310, 320, 341, 352, 440, 496, 524, 620, 640, 655, 682, 704, 880, 992, 1048, 1240, 1310, 1364, 1408, 1441, 1705, 1760, 1984, 2096, 2480, 2620, 2728, 2882, 3410, 3520, 3968, 4061, 4192, 4960, 5240, 5456, 5764, 6820, 7040, 7205, 8122, 8384, 9920, 10480, 10912, 11528, 13640, 14410, 16244, 16768, 19840, 20305, 20960, 21824, 23056, 27280, 28820, 32488, 40610, 41920, 43648, 44671, 46112, 54560, 57640, 64976, 81220, 83840, 89342, 92224, 109120, 115280, 129952, 162440, 178684, 184448, 218240, 223355, 230560, 259904, 324880, 357368, 446710, 461120, 519808, 649760, 714736, 893420, 922240, 1299520, 1429472, 1786840, 2599040, 2858944, 3573680, 5717888, 7147360, 14294720, 28589440]

約数ペア:

[(1, 28589440), (2, 14294720), (4, 7147360), (5, 5717888), (8, 3573680), (10, 2858944), (11, 2599040), (16, 1786840), (20, 1429472), (22, 1299520), (31, 922240), (32, 893420), (40, 714736), (44, 649760), (55, 519808), (62, 461120), (64, 446710), (80, 357368), (88, 324880), (110, 259904), (124, 230560), (128, 223355), (131, 218240), (155, 184448), (160, 178684), (176, 162440), (220, 129952), (248, 115280), (262, 109120), (310, 92224), (320, 89342), (341, 83840), (352, 81220), (440, 64976), (496, 57640), (524, 54560), (620, 46112), (640, 44671), (655, 43648), (682, 41920), (704, 40610), (880, 32488), (992, 28820), (1048, 27280), (1240, 23056), (1310, 21824), (1364, 20960), (1408, 20305), (1441, 19840), (1705, 16768), (1760, 16244), (1984, 14410), (2096, 13640), (2480, 11528), (2620, 10912), (2728, 10480), (2882, 9920), (3410, 8384), (3520, 8122), (3968, 7205), (4061, 7040), (4192, 6820), (4960, 5764), (5240, 5456)]