890494280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{467}}^1$

素因数の和:703

約数の個数: 128

約数和(自身を含む): 2287958400

約数和(自身を除く): 1397464120

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 193, 247, 260, 380, 386, 467, 494, 520, 760, 772, 934, 965, 988, 1235, 1544, 1868, 1930, 1976, 2335, 2470, 2509, 3667, 3736, 3860, 4670, 4940, 5018, 6071, 7334, 7720, 8873, 9340, 9880, 10036, 12142, 12545, 14668, 17746, 18335, 18680, 20072, 24284, 25090, 29336, 30355, 35492, 36670, 44365, 47671, 48568, 50180, 60710, 70984, 73340, 88730, 90131, 95342, 100360, 115349, 121420, 146680, 177460, 180262, 190684, 230698, 238355, 242840, 354920, 360524, 381368, 450655, 461396, 476710, 576745, 721048, 901310, 922792, 953420, 1153490, 1171703, 1712489, 1802620, 1906840, 2306980, 2343406, 3424978, 3605240, 4613960, 4686812, 5858515, 6849956, 8562445, 9373624, 11717030, 13699912, 17124890, 22262357, 23434060, 34249780, 44524714, 46868120, 68499560, 89049428, 111311785, 178098856, 222623570, 445247140, 890494280]

約数ペア:

[(1, 890494280), (2, 445247140), (4, 222623570), (5, 178098856), (8, 111311785), (10, 89049428), (13, 68499560), (19, 46868120), (20, 44524714), (26, 34249780), (38, 23434060), (40, 22262357), (52, 17124890), (65, 13699912), (76, 11717030), (95, 9373624), (104, 8562445), (130, 6849956), (152, 5858515), (190, 4686812), (193, 4613960), (247, 3605240), (260, 3424978), (380, 2343406), (386, 2306980), (467, 1906840), (494, 1802620), (520, 1712489), (760, 1171703), (772, 1153490), (934, 953420), (965, 922792), (988, 901310), (1235, 721048), (1544, 576745), (1868, 476710), (1930, 461396), (1976, 450655), (2335, 381368), (2470, 360524), (2509, 354920), (3667, 242840), (3736, 238355), (3860, 230698), (4670, 190684), (4940, 180262), (5018, 177460), (6071, 146680), (7334, 121420), (7720, 115349), (8873, 100360), (9340, 95342), (9880, 90131), (10036, 88730), (12142, 73340), (12545, 70984), (14668, 60710), (17746, 50180), (18335, 48568), (18680, 47671), (20072, 44365), (24284, 36670), (25090, 35492), (29336, 30355)]