257219820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3331}}^1$

素因数の和:3373

約数の個数: 192

約数和(自身を含む): 940423680

約数和(自身を除く): 683203860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 18, 20, 22, 26, 27, 30, 33, 36, 39, 44, 45, 52, 54, 55, 60, 65, 66, 78, 90, 99, 108, 110, 117, 130, 132, 135, 143, 156, 165, 180, 195, 198, 220, 234, 260, 270, 286, 297, 330, 351, 390, 396, 429, 468, 495, 540, 572, 585, 594, 660, 702, 715, 780, 858, 990, 1170, 1188, 1287, 1404, 1430, 1485, 1716, 1755, 1980, 2145, 2340, 2574, 2860, 2970, 3331, 3510, 3861, 4290, 5148, 5940, 6435, 6662, 7020, 7722, 8580, 9993, 12870, 13324, 15444, 16655, 19305, 19986, 25740, 29979, 33310, 36641, 38610, 39972, 43303, 49965, 59958, 66620, 73282, 77220, 86606, 89937, 99930, 109923, 119916, 129909, 146564, 149895, 173212, 179874, 183205, 199860, 216515, 219846, 259818, 299790, 329769, 359748, 366410, 389727, 433030, 439692, 449685, 476333, 519636, 549615, 599580, 649545, 659538, 732820, 779454, 866060, 899370, 952666, 989307, 1099230, 1169181, 1299090, 1319076, 1428999, 1558908, 1648845, 1798740, 1905332, 1948635, 1978614, 2198460, 2338362, 2381665, 2598180, 2857998, 3297690, 3897270, 3957228, 4286997, 4676724, 4763330, 4946535, 5715996, 5845905, 6595380, 7144995, 7794540, 8573994, 9526660, 9893070, 11691810, 12860991, 14289990, 17147988, 19786140, 21434985, 23383620, 25721982, 28579980, 42869970, 51443964, 64304955, 85739940, 128609910, 257219820]

約数ペア:

[(1, 257219820), (2, 128609910), (3, 85739940), (4, 64304955), (5, 51443964), (6, 42869970), (9, 28579980), (10, 25721982), (11, 23383620), (12, 21434985), (13, 19786140), (15, 17147988), (18, 14289990), (20, 12860991), (22, 11691810), (26, 9893070), (27, 9526660), (30, 8573994), (33, 7794540), (36, 7144995), (39, 6595380), (44, 5845905), (45, 5715996), (52, 4946535), (54, 4763330), (55, 4676724), (60, 4286997), (65, 3957228), (66, 3897270), (78, 3297690), (90, 2857998), (99, 2598180), (108, 2381665), (110, 2338362), (117, 2198460), (130, 1978614), (132, 1948635), (135, 1905332), (143, 1798740), (156, 1648845), (165, 1558908), (180, 1428999), (195, 1319076), (198, 1299090), (220, 1169181), (234, 1099230), (260, 989307), (270, 952666), (286, 899370), (297, 866060), (330, 779454), (351, 732820), (390, 659538), (396, 649545), (429, 599580), (468, 549615), (495, 519636), (540, 476333), (572, 449685), (585, 439692), (594, 433030), (660, 389727), (702, 366410), (715, 359748), (780, 329769), (858, 299790), (990, 259818), (1170, 219846), (1188, 216515), (1287, 199860), (1404, 183205), (1430, 179874), (1485, 173212), (1716, 149895), (1755, 146564), (1980, 129909), (2145, 119916), (2340, 109923), (2574, 99930), (2860, 89937), (2970, 86606), (3331, 77220), (3510, 73282), (3861, 66620), (4290, 59958), (5148, 49965), (5940, 43303), (6435, 39972), (6662, 38610), (7020, 36641), (7722, 33310), (8580, 29979), (9993, 25740), (12870, 19986), (13324, 19305), (15444, 16655)]