405382480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{1597}}^1$

素因数の和:1796

約数の個数: 80

約数和(自身を含む): 998686080

約数和(自身を除く): 593303600

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 167, 190, 304, 334, 380, 668, 760, 835, 1336, 1520, 1597, 1670, 2672, 3173, 3194, 3340, 6346, 6388, 6680, 7985, 12692, 12776, 13360, 15865, 15970, 25384, 25552, 30343, 31730, 31940, 50768, 60686, 63460, 63880, 121372, 126920, 127760, 151715, 242744, 253840, 266699, 303430, 485488, 533398, 606860, 1066796, 1213720, 1333495, 2133592, 2427440, 2666990, 4267184, 5067281, 5333980, 10134562, 10667960, 20269124, 21335920, 25336405, 40538248, 50672810, 81076496, 101345620, 202691240, 405382480]

約数ペア:

[(1, 405382480), (2, 202691240), (4, 101345620), (5, 81076496), (8, 50672810), (10, 40538248), (16, 25336405), (19, 21335920), (20, 20269124), (38, 10667960), (40, 10134562), (76, 5333980), (80, 5067281), (95, 4267184), (152, 2666990), (167, 2427440), (190, 2133592), (304, 1333495), (334, 1213720), (380, 1066796), (668, 606860), (760, 533398), (835, 485488), (1336, 303430), (1520, 266699), (1597, 253840), (1670, 242744), (2672, 151715), (3173, 127760), (3194, 126920), (3340, 121372), (6346, 63880), (6388, 63460), (6680, 60686), (7985, 50768), (12692, 31940), (12776, 31730), (13360, 30343), (15865, 25552), (15970, 25384)]