641547960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{1231}}^1$

素因数の和:1389

約数の個数: 128

約数和(自身を含む): 1990517760

約数和(自身を除く): 1348969800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 101, 120, 129, 172, 202, 215, 258, 303, 344, 404, 430, 505, 516, 606, 645, 808, 860, 1010, 1032, 1212, 1231, 1290, 1515, 1720, 2020, 2424, 2462, 2580, 3030, 3693, 4040, 4343, 4924, 5160, 6060, 6155, 7386, 8686, 9848, 12120, 12310, 13029, 14772, 17372, 18465, 21715, 24620, 26058, 29544, 34744, 36930, 43430, 49240, 52116, 52933, 65145, 73860, 86860, 104232, 105866, 124331, 130290, 147720, 158799, 173720, 211732, 248662, 260580, 264665, 317598, 372993, 423464, 497324, 521160, 529330, 621655, 635196, 745986, 793995, 994648, 1058660, 1243310, 1270392, 1491972, 1587990, 1864965, 2117320, 2486620, 2983944, 3175980, 3729930, 4973240, 5346233, 6351960, 7459860, 10692466, 14919720, 16038699, 21384932, 26731165, 32077398, 42769864, 53462330, 64154796, 80193495, 106924660, 128309592, 160386990, 213849320, 320773980, 641547960]

約数ペア:

[(1, 641547960), (2, 320773980), (3, 213849320), (4, 160386990), (5, 128309592), (6, 106924660), (8, 80193495), (10, 64154796), (12, 53462330), (15, 42769864), (20, 32077398), (24, 26731165), (30, 21384932), (40, 16038699), (43, 14919720), (60, 10692466), (86, 7459860), (101, 6351960), (120, 5346233), (129, 4973240), (172, 3729930), (202, 3175980), (215, 2983944), (258, 2486620), (303, 2117320), (344, 1864965), (404, 1587990), (430, 1491972), (505, 1270392), (516, 1243310), (606, 1058660), (645, 994648), (808, 793995), (860, 745986), (1010, 635196), (1032, 621655), (1212, 529330), (1231, 521160), (1290, 497324), (1515, 423464), (1720, 372993), (2020, 317598), (2424, 264665), (2462, 260580), (2580, 248662), (3030, 211732), (3693, 173720), (4040, 158799), (4343, 147720), (4924, 130290), (5160, 124331), (6060, 105866), (6155, 104232), (7386, 86860), (8686, 73860), (9848, 65145), (12120, 52933), (12310, 52116), (13029, 49240), (14772, 43430), (17372, 36930), (18465, 34744), (21715, 29544), (24620, 26058)]