30961840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4253}}^1$

素因数の和:4286

約数の個数: 80

約数和(自身を含む): 88619328

約数和(自身を除く): 57657488

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 4253, 7280, 8506, 17012, 21265, 29771, 34024, 42530, 55289, 59542, 68048, 85060, 110578, 119084, 148855, 170120, 221156, 238168, 276445, 297710, 340240, 387023, 442312, 476336, 552890, 595420, 774046, 884624, 1105780, 1190840, 1548092, 1935115, 2211560, 2381680, 3096184, 3870230, 4423120, 6192368, 7740460, 15480920, 30961840]

約数ペア:

[(1, 30961840), (2, 15480920), (4, 7740460), (5, 6192368), (7, 4423120), (8, 3870230), (10, 3096184), (13, 2381680), (14, 2211560), (16, 1935115), (20, 1548092), (26, 1190840), (28, 1105780), (35, 884624), (40, 774046), (52, 595420), (56, 552890), (65, 476336), (70, 442312), (80, 387023), (91, 340240), (104, 297710), (112, 276445), (130, 238168), (140, 221156), (182, 170120), (208, 148855), (260, 119084), (280, 110578), (364, 85060), (455, 68048), (520, 59542), (560, 55289), (728, 42530), (910, 34024), (1040, 29771), (1456, 21265), (1820, 17012), (3640, 8506), (4253, 7280)]