208974920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3571}}^1$

素因数の和:3619

約数の個数: 128

約数和(自身を含む): 617241600

約数和(自身を除く): 408266680

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 19, 20, 22, 28, 35, 38, 40, 44, 55, 56, 70, 76, 77, 88, 95, 110, 133, 140, 152, 154, 190, 209, 220, 266, 280, 308, 380, 385, 418, 440, 532, 616, 665, 760, 770, 836, 1045, 1064, 1330, 1463, 1540, 1672, 2090, 2660, 2926, 3080, 3571, 4180, 5320, 5852, 7142, 7315, 8360, 11704, 14284, 14630, 17855, 24997, 28568, 29260, 35710, 39281, 49994, 58520, 67849, 71420, 78562, 99988, 124985, 135698, 142840, 157124, 196405, 199976, 249970, 271396, 274967, 314248, 339245, 392810, 474943, 499940, 542792, 549934, 678490, 746339, 785620, 949886, 999880, 1099868, 1356980, 1374835, 1492678, 1571240, 1899772, 2199736, 2374715, 2713960, 2749670, 2985356, 3731695, 3799544, 4749430, 5224373, 5499340, 5970712, 7463390, 9498860, 10448746, 10998680, 14926780, 18997720, 20897492, 26121865, 29853560, 41794984, 52243730, 104487460, 208974920]

約数ペア:

[(1, 208974920), (2, 104487460), (4, 52243730), (5, 41794984), (7, 29853560), (8, 26121865), (10, 20897492), (11, 18997720), (14, 14926780), (19, 10998680), (20, 10448746), (22, 9498860), (28, 7463390), (35, 5970712), (38, 5499340), (40, 5224373), (44, 4749430), (55, 3799544), (56, 3731695), (70, 2985356), (76, 2749670), (77, 2713960), (88, 2374715), (95, 2199736), (110, 1899772), (133, 1571240), (140, 1492678), (152, 1374835), (154, 1356980), (190, 1099868), (209, 999880), (220, 949886), (266, 785620), (280, 746339), (308, 678490), (380, 549934), (385, 542792), (418, 499940), (440, 474943), (532, 392810), (616, 339245), (665, 314248), (760, 274967), (770, 271396), (836, 249970), (1045, 199976), (1064, 196405), (1330, 157124), (1463, 142840), (1540, 135698), (1672, 124985), (2090, 99988), (2660, 78562), (2926, 71420), (3080, 67849), (3571, 58520), (4180, 49994), (5320, 39281), (5852, 35710), (7142, 29260), (7315, 28568), (8360, 24997), (11704, 17855), (14284, 14630)]