20734920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1$

素因数の和:356

約数の個数: 128

約数和(自身を含む): 70329600

約数和(自身を除く): 49594680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 73, 90, 108, 120, 135, 146, 180, 216, 219, 263, 270, 292, 360, 365, 438, 526, 540, 584, 657, 730, 789, 876, 1052, 1080, 1095, 1314, 1315, 1460, 1578, 1752, 1971, 2104, 2190, 2367, 2628, 2630, 2920, 3156, 3285, 3942, 3945, 4380, 4734, 5256, 5260, 6312, 6570, 7101, 7884, 7890, 8760, 9468, 9855, 10520, 11835, 13140, 14202, 15768, 15780, 18936, 19199, 19710, 23670, 26280, 28404, 31560, 35505, 38398, 39420, 47340, 56808, 57597, 71010, 76796, 78840, 94680, 95995, 115194, 142020, 153592, 172791, 191990, 230388, 284040, 287985, 345582, 383980, 460776, 518373, 575970, 691164, 767960, 863955, 1036746, 1151940, 1382328, 1727910, 2073492, 2303880, 2591865, 3455820, 4146984, 5183730, 6911640, 10367460, 20734920]

約数ペア:

[(1, 20734920), (2, 10367460), (3, 6911640), (4, 5183730), (5, 4146984), (6, 3455820), (8, 2591865), (9, 2303880), (10, 2073492), (12, 1727910), (15, 1382328), (18, 1151940), (20, 1036746), (24, 863955), (27, 767960), (30, 691164), (36, 575970), (40, 518373), (45, 460776), (54, 383980), (60, 345582), (72, 287985), (73, 284040), (90, 230388), (108, 191990), (120, 172791), (135, 153592), (146, 142020), (180, 115194), (216, 95995), (219, 94680), (263, 78840), (270, 76796), (292, 71010), (360, 57597), (365, 56808), (438, 47340), (526, 39420), (540, 38398), (584, 35505), (657, 31560), (730, 28404), (789, 26280), (876, 23670), (1052, 19710), (1080, 19199), (1095, 18936), (1314, 15780), (1315, 15768), (1460, 14202), (1578, 13140), (1752, 11835), (1971, 10520), (2104, 9855), (2190, 9468), (2367, 8760), (2628, 7890), (2630, 7884), (2920, 7101), (3156, 6570), (3285, 6312), (3942, 5260), (3945, 5256), (4380, 4734)]