78181320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{571}}^1$

素因数の和:755

約数の個数: 128

約数和(自身を含む): 270167040

約数和(自身を除く): 191985720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 163, 168, 210, 280, 326, 420, 489, 571, 652, 815, 840, 978, 1141, 1142, 1304, 1630, 1713, 1956, 2282, 2284, 2445, 2855, 3260, 3423, 3426, 3912, 3997, 4564, 4568, 4890, 5705, 5710, 6520, 6846, 6852, 7994, 8565, 9128, 9780, 11410, 11420, 11991, 13692, 13704, 15988, 17115, 17130, 19560, 19985, 22820, 22840, 23982, 27384, 31976, 34230, 34260, 39970, 45640, 47964, 59955, 68460, 68520, 79940, 93073, 95928, 119910, 136920, 159880, 186146, 239820, 279219, 372292, 465365, 479640, 558438, 651511, 744584, 930730, 1116876, 1303022, 1396095, 1861460, 1954533, 2233752, 2606044, 2792190, 3257555, 3722920, 3909066, 5212088, 5584380, 6515110, 7818132, 9772665, 11168760, 13030220, 15636264, 19545330, 26060440, 39090660, 78181320]

約数ペア:

[(1, 78181320), (2, 39090660), (3, 26060440), (4, 19545330), (5, 15636264), (6, 13030220), (7, 11168760), (8, 9772665), (10, 7818132), (12, 6515110), (14, 5584380), (15, 5212088), (20, 3909066), (21, 3722920), (24, 3257555), (28, 2792190), (30, 2606044), (35, 2233752), (40, 1954533), (42, 1861460), (56, 1396095), (60, 1303022), (70, 1116876), (84, 930730), (105, 744584), (120, 651511), (140, 558438), (163, 479640), (168, 465365), (210, 372292), (280, 279219), (326, 239820), (420, 186146), (489, 159880), (571, 136920), (652, 119910), (815, 95928), (840, 93073), (978, 79940), (1141, 68520), (1142, 68460), (1304, 59955), (1630, 47964), (1713, 45640), (1956, 39970), (2282, 34260), (2284, 34230), (2445, 31976), (2855, 27384), (3260, 23982), (3423, 22840), (3426, 22820), (3912, 19985), (3997, 19560), (4564, 17130), (4568, 17115), (4890, 15988), (5705, 13704), (5710, 13692), (6520, 11991), (6846, 11420), (6852, 11410), (7994, 9780), (8565, 9128)]