205421880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{997}}^1$

素因数の和:1129

約数の個数: 128

約数和(自身を含む): 659638080

約数和(自身を除く): 454216200

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, 997, 1010, 1020, 1212, 1515, 1717, 1994, 2020, 2040, 2424, 2991, 3030, 3434, 3988, 4040, 4985, 5151, 5982, 6060, 6868, 7976, 8585, 9970, 10302, 11964, 12120, 13736, 14955, 16949, 17170, 19940, 20604, 23928, 25755, 29910, 33898, 34340, 39880, 41208, 50847, 51510, 59820, 67796, 68680, 84745, 100697, 101694, 103020, 119640, 135592, 169490, 201394, 203388, 206040, 254235, 302091, 338980, 402788, 406776, 503485, 508470, 604182, 677960, 805576, 1006970, 1016940, 1208364, 1510455, 1711849, 2013940, 2033880, 2416728, 3020910, 3423698, 4027880, 5135547, 6041820, 6847396, 8559245, 10271094, 12083640, 13694792, 17118490, 20542188, 25677735, 34236980, 41084376, 51355470, 68473960, 102710940, 205421880]

約数ペア:

[(1, 205421880), (2, 102710940), (3, 68473960), (4, 51355470), (5, 41084376), (6, 34236980), (8, 25677735), (10, 20542188), (12, 17118490), (15, 13694792), (17, 12083640), (20, 10271094), (24, 8559245), (30, 6847396), (34, 6041820), (40, 5135547), (51, 4027880), (60, 3423698), (68, 3020910), (85, 2416728), (101, 2033880), (102, 2013940), (120, 1711849), (136, 1510455), (170, 1208364), (202, 1016940), (204, 1006970), (255, 805576), (303, 677960), (340, 604182), (404, 508470), (408, 503485), (505, 406776), (510, 402788), (606, 338980), (680, 302091), (808, 254235), (997, 206040), (1010, 203388), (1020, 201394), (1212, 169490), (1515, 135592), (1717, 119640), (1994, 103020), (2020, 101694), (2040, 100697), (2424, 84745), (2991, 68680), (3030, 67796), (3434, 59820), (3988, 51510), (4040, 50847), (4985, 41208), (5151, 39880), (5982, 34340), (6060, 33898), (6868, 29910), (7976, 25755), (8585, 23928), (9970, 20604), (10302, 19940), (11964, 17170), (12120, 16949), (13736, 14955)]