309742680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{198553}}^1$

素因数の和:198580

約数の個数: 64

約数和(自身を含む): 1000712160

約数和(自身を除く): 690969480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 198553, 397106, 595659, 794212, 992765, 1191318, 1588424, 1985530, 2382636, 2581189, 2978295, 3971060, 4765272, 5162378, 5956590, 7743567, 7942120, 10324756, 11913180, 12905945, 15487134, 20649512, 23826360, 25811890, 30974268, 38717835, 51623780, 61948536, 77435670, 103247560, 154871340, 309742680]

約数ペア:

[(1, 309742680), (2, 154871340), (3, 103247560), (4, 77435670), (5, 61948536), (6, 51623780), (8, 38717835), (10, 30974268), (12, 25811890), (13, 23826360), (15, 20649512), (20, 15487134), (24, 12905945), (26, 11913180), (30, 10324756), (39, 7942120), (40, 7743567), (52, 5956590), (60, 5162378), (65, 4765272), (78, 3971060), (104, 2978295), (120, 2581189), (130, 2382636), (156, 1985530), (195, 1588424), (260, 1191318), (312, 992765), (390, 794212), (520, 595659), (780, 397106), (1560, 198553)]