20006554820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{283}}^1\times {\mathrm{3389}}^1$

素因数の和:3837

約数の個数: 96

約数和(自身を含む): 48523104000

約数和(自身を除く): 28516549180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 283, 298, 566, 596, 745, 1043, 1132, 1415, 1490, 1981, 2086, 2830, 2980, 3389, 3962, 4172, 5215, 5660, 6778, 7924, 9905, 10430, 13556, 16945, 19810, 20860, 23723, 33890, 39620, 42167, 47446, 67780, 84334, 94892, 118615, 168668, 210835, 237230, 295169, 421670, 474460, 504961, 590338, 843340, 959087, 1009922, 1180676, 1475845, 1918174, 2019844, 2524805, 2951690, 3534727, 3836348, 4795435, 5049610, 5903380, 6713609, 7069454, 9590870, 10099220, 13427218, 14138908, 17673635, 19181740, 26854436, 33568045, 35347270, 67136090, 70694540, 134272180, 142903963, 285807926, 571615852, 714519815, 1000327741, 1429039630, 2000655482, 2858079260, 4001310964, 5001638705, 10003277410, 20006554820]

約数ペア:

[(1, 20006554820), (2, 10003277410), (4, 5001638705), (5, 4001310964), (7, 2858079260), (10, 2000655482), (14, 1429039630), (20, 1000327741), (28, 714519815), (35, 571615852), (70, 285807926), (140, 142903963), (149, 134272180), (283, 70694540), (298, 67136090), (566, 35347270), (596, 33568045), (745, 26854436), (1043, 19181740), (1132, 17673635), (1415, 14138908), (1490, 13427218), (1981, 10099220), (2086, 9590870), (2830, 7069454), (2980, 6713609), (3389, 5903380), (3962, 5049610), (4172, 4795435), (5215, 3836348), (5660, 3534727), (6778, 2951690), (7924, 2524805), (9905, 2019844), (10430, 1918174), (13556, 1475845), (16945, 1180676), (19810, 1009922), (20860, 959087), (23723, 843340), (33890, 590338), (39620, 504961), (42167, 474460), (47446, 421670), (67780, 295169), (84334, 237230), (94892, 210835), (118615, 168668)]