20810040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^2$

素因数の和:233

約数の個数: 96

約数和(自身を含む): 66763440

約数和(自身を除く): 45953400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 101, 102, 120, 136, 170, 202, 204, 255, 303, 340, 404, 408, 505, 510, 606, 680, 808, 1010, 1020, 1212, 1515, 1717, 2020, 2040, 2424, 3030, 3434, 4040, 5151, 6060, 6868, 8585, 10201, 10302, 12120, 13736, 17170, 20402, 20604, 25755, 30603, 34340, 40804, 41208, 51005, 51510, 61206, 68680, 81608, 102010, 103020, 122412, 153015, 173417, 204020, 206040, 244824, 306030, 346834, 408040, 520251, 612060, 693668, 867085, 1040502, 1224120, 1387336, 1734170, 2081004, 2601255, 3468340, 4162008, 5202510, 6936680, 10405020, 20810040]

約数ペア:

[(1, 20810040), (2, 10405020), (3, 6936680), (4, 5202510), (5, 4162008), (6, 3468340), (8, 2601255), (10, 2081004), (12, 1734170), (15, 1387336), (17, 1224120), (20, 1040502), (24, 867085), (30, 693668), (34, 612060), (40, 520251), (51, 408040), (60, 346834), (68, 306030), (85, 244824), (101, 206040), (102, 204020), (120, 173417), (136, 153015), (170, 122412), (202, 103020), (204, 102010), (255, 81608), (303, 68680), (340, 61206), (404, 51510), (408, 51005), (505, 41208), (510, 40804), (606, 34340), (680, 30603), (808, 25755), (1010, 20604), (1020, 20402), (1212, 17170), (1515, 13736), (1717, 12120), (2020, 10302), (2040, 10201), (2424, 8585), (3030, 6868), (3434, 6060), (4040, 5151)]