18994170

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{431}}^1$

素因数の和:567

約数の個数: 64

約数和(自身を含む): 49641984

約数和(自身を除く): 30647814

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 113, 130, 195, 226, 339, 390, 431, 565, 678, 862, 1130, 1293, 1469, 1695, 2155, 2586, 2938, 3390, 4310, 4407, 5603, 6465, 7345, 8814, 11206, 12930, 14690, 16809, 22035, 28015, 33618, 44070, 48703, 56030, 84045, 97406, 146109, 168090, 243515, 292218, 487030, 633139, 730545, 1266278, 1461090, 1899417, 3165695, 3798834, 6331390, 9497085, 18994170]

約数ペア:

[(1, 18994170), (2, 9497085), (3, 6331390), (5, 3798834), (6, 3165695), (10, 1899417), (13, 1461090), (15, 1266278), (26, 730545), (30, 633139), (39, 487030), (65, 292218), (78, 243515), (113, 168090), (130, 146109), (195, 97406), (226, 84045), (339, 56030), (390, 48703), (431, 44070), (565, 33618), (678, 28015), (862, 22035), (1130, 16809), (1293, 14690), (1469, 12930), (1695, 11206), (2155, 8814), (2586, 7345), (2938, 6465), (3390, 5603), (4310, 4407)]