20455350

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:182

約数の個数: 96

約数和(自身を含む): 53996544

約数和(自身を除く): 33541194

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 31, 50, 53, 62, 75, 83, 93, 106, 150, 155, 159, 166, 186, 249, 265, 310, 318, 415, 465, 498, 530, 775, 795, 830, 930, 1245, 1325, 1550, 1590, 1643, 2075, 2325, 2490, 2573, 2650, 3286, 3975, 4150, 4399, 4650, 4929, 5146, 6225, 7719, 7950, 8215, 8798, 9858, 12450, 12865, 13197, 15438, 16430, 21995, 24645, 25730, 26394, 38595, 41075, 43990, 49290, 64325, 65985, 77190, 82150, 109975, 123225, 128650, 131970, 136369, 192975, 219950, 246450, 272738, 329925, 385950, 409107, 659850, 681845, 818214, 1363690, 2045535, 3409225, 4091070, 6818450, 10227675, 20455350]

約数ペア:

[(1, 20455350), (2, 10227675), (3, 6818450), (5, 4091070), (6, 3409225), (10, 2045535), (15, 1363690), (25, 818214), (30, 681845), (31, 659850), (50, 409107), (53, 385950), (62, 329925), (75, 272738), (83, 246450), (93, 219950), (106, 192975), (150, 136369), (155, 131970), (159, 128650), (166, 123225), (186, 109975), (249, 82150), (265, 77190), (310, 65985), (318, 64325), (415, 49290), (465, 43990), (498, 41075), (530, 38595), (775, 26394), (795, 25730), (830, 24645), (930, 21995), (1245, 16430), (1325, 15438), (1550, 13197), (1590, 12865), (1643, 12450), (2075, 9858), (2325, 8798), (2490, 8215), (2573, 7950), (2650, 7719), (3286, 6225), (3975, 5146), (4150, 4929), (4399, 4650)]