90319120

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{461}}^1$

素因数の和:584

約数の個数: 80

約数和(自身を含む): 219985920

約数和(自身を除く): 129666800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 79, 80, 124, 155, 158, 248, 310, 316, 395, 461, 496, 620, 632, 790, 922, 1240, 1264, 1580, 1844, 2305, 2449, 2480, 3160, 3688, 4610, 4898, 6320, 7376, 9220, 9796, 12245, 14291, 18440, 19592, 24490, 28582, 36419, 36880, 39184, 48980, 57164, 71455, 72838, 97960, 114328, 142910, 145676, 182095, 195920, 228656, 285820, 291352, 364190, 571640, 582704, 728380, 1128989, 1143280, 1456760, 2257978, 2913520, 4515956, 5644945, 9031912, 11289890, 18063824, 22579780, 45159560, 90319120]

約数ペア:

[(1, 90319120), (2, 45159560), (4, 22579780), (5, 18063824), (8, 11289890), (10, 9031912), (16, 5644945), (20, 4515956), (31, 2913520), (40, 2257978), (62, 1456760), (79, 1143280), (80, 1128989), (124, 728380), (155, 582704), (158, 571640), (248, 364190), (310, 291352), (316, 285820), (395, 228656), (461, 195920), (496, 182095), (620, 145676), (632, 142910), (790, 114328), (922, 97960), (1240, 72838), (1264, 71455), (1580, 57164), (1844, 48980), (2305, 39184), (2449, 36880), (2480, 36419), (3160, 28582), (3688, 24490), (4610, 19592), (4898, 18440), (6320, 14291), (7376, 12245), (9220, 9796)]