20575620

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{977}}^1$

素因数の和:1011

約数の個数: 120

約数和(自身を含む): 69582744

約数和(自身を除く): 49007124

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 117, 130, 135, 156, 162, 180, 195, 234, 260, 270, 324, 351, 390, 405, 468, 540, 585, 702, 780, 810, 977, 1053, 1170, 1404, 1620, 1755, 1954, 2106, 2340, 2931, 3510, 3908, 4212, 4885, 5265, 5862, 7020, 8793, 9770, 10530, 11724, 12701, 14655, 17586, 19540, 21060, 25402, 26379, 29310, 35172, 38103, 43965, 50804, 52758, 58620, 63505, 76206, 79137, 87930, 105516, 114309, 127010, 131895, 152412, 158274, 175860, 190515, 228618, 254020, 263790, 316548, 342927, 381030, 395685, 457236, 527580, 571545, 685854, 762060, 791370, 1028781, 1143090, 1371708, 1582740, 1714635, 2057562, 2286180, 3429270, 4115124, 5143905, 6858540, 10287810, 20575620]

約数ペア:

[(1, 20575620), (2, 10287810), (3, 6858540), (4, 5143905), (5, 4115124), (6, 3429270), (9, 2286180), (10, 2057562), (12, 1714635), (13, 1582740), (15, 1371708), (18, 1143090), (20, 1028781), (26, 791370), (27, 762060), (30, 685854), (36, 571545), (39, 527580), (45, 457236), (52, 395685), (54, 381030), (60, 342927), (65, 316548), (78, 263790), (81, 254020), (90, 228618), (108, 190515), (117, 175860), (130, 158274), (135, 152412), (156, 131895), (162, 127010), (180, 114309), (195, 105516), (234, 87930), (260, 79137), (270, 76206), (324, 63505), (351, 58620), (390, 52758), (405, 50804), (468, 43965), (540, 38103), (585, 35172), (702, 29310), (780, 26379), (810, 25402), (977, 21060), (1053, 19540), (1170, 17586), (1404, 14655), (1620, 12701), (1755, 11724), (1954, 10530), (2106, 9770), (2340, 8793), (2931, 7020), (3510, 5862), (3908, 5265), (4212, 4885)]