61253720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:489

約数の個数: 128

約数和(自身を含む): 167961600

約数和(自身を除く): 106707880

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 19, 20, 22, 34, 38, 40, 44, 55, 68, 76, 85, 88, 95, 110, 136, 152, 170, 187, 190, 209, 220, 323, 340, 374, 380, 418, 431, 440, 646, 680, 748, 760, 836, 862, 935, 1045, 1292, 1496, 1615, 1672, 1724, 1870, 2090, 2155, 2584, 3230, 3448, 3553, 3740, 4180, 4310, 4741, 6460, 7106, 7327, 7480, 8189, 8360, 8620, 9482, 12920, 14212, 14654, 16378, 17240, 17765, 18964, 23705, 28424, 29308, 32756, 35530, 36635, 37928, 40945, 47410, 58616, 65512, 71060, 73270, 80597, 81890, 90079, 94820, 139213, 142120, 146540, 161194, 163780, 180158, 189640, 278426, 293080, 322388, 327560, 360316, 402985, 450395, 556852, 644776, 696065, 720632, 805970, 900790, 1113704, 1392130, 1531343, 1611940, 1801580, 2784260, 3062686, 3223880, 3603160, 5568520, 6125372, 7656715, 12250744, 15313430, 30626860, 61253720]

約数ペア:

[(1, 61253720), (2, 30626860), (4, 15313430), (5, 12250744), (8, 7656715), (10, 6125372), (11, 5568520), (17, 3603160), (19, 3223880), (20, 3062686), (22, 2784260), (34, 1801580), (38, 1611940), (40, 1531343), (44, 1392130), (55, 1113704), (68, 900790), (76, 805970), (85, 720632), (88, 696065), (95, 644776), (110, 556852), (136, 450395), (152, 402985), (170, 360316), (187, 327560), (190, 322388), (209, 293080), (220, 278426), (323, 189640), (340, 180158), (374, 163780), (380, 161194), (418, 146540), (431, 142120), (440, 139213), (646, 94820), (680, 90079), (748, 81890), (760, 80597), (836, 73270), (862, 71060), (935, 65512), (1045, 58616), (1292, 47410), (1496, 40945), (1615, 37928), (1672, 36635), (1724, 35530), (1870, 32756), (2090, 29308), (2155, 28424), (2584, 23705), (3230, 18964), (3448, 17765), (3553, 17240), (3740, 16378), (4180, 14654), (4310, 14212), (4741, 12920), (6460, 9482), (7106, 8620), (7327, 8360), (7480, 8189)]