256301430

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{613}}^1$

素因数の和:822

約数の個数: 128

約数和(自身を含む): 772402176

約数和(自身を除く): 516100746

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 66, 70, 77, 105, 110, 154, 165, 181, 210, 231, 330, 362, 385, 462, 543, 613, 770, 905, 1086, 1155, 1226, 1267, 1810, 1839, 1991, 2310, 2534, 2715, 3065, 3678, 3801, 3982, 4291, 5430, 5973, 6130, 6335, 6743, 7602, 8582, 9195, 9955, 11946, 12670, 12873, 13486, 13937, 18390, 19005, 19910, 20229, 21455, 25746, 27874, 29865, 33715, 38010, 40458, 41811, 42910, 47201, 59730, 64365, 67430, 69685, 83622, 94402, 101145, 110953, 128730, 139370, 141603, 202290, 209055, 221906, 236005, 283206, 332859, 418110, 472010, 554765, 665718, 708015, 776671, 1109530, 1220483, 1416030, 1553342, 1664295, 2330013, 2440966, 3328590, 3661449, 3883355, 4660026, 6102415, 7322898, 7766710, 8543381, 11650065, 12204830, 17086762, 18307245, 23300130, 25630143, 36614490, 42716905, 51260286, 85433810, 128150715, 256301430]

約数ペア:

[(1, 256301430), (2, 128150715), (3, 85433810), (5, 51260286), (6, 42716905), (7, 36614490), (10, 25630143), (11, 23300130), (14, 18307245), (15, 17086762), (21, 12204830), (22, 11650065), (30, 8543381), (33, 7766710), (35, 7322898), (42, 6102415), (55, 4660026), (66, 3883355), (70, 3661449), (77, 3328590), (105, 2440966), (110, 2330013), (154, 1664295), (165, 1553342), (181, 1416030), (210, 1220483), (231, 1109530), (330, 776671), (362, 708015), (385, 665718), (462, 554765), (543, 472010), (613, 418110), (770, 332859), (905, 283206), (1086, 236005), (1155, 221906), (1226, 209055), (1267, 202290), (1810, 141603), (1839, 139370), (1991, 128730), (2310, 110953), (2534, 101145), (2715, 94402), (3065, 83622), (3678, 69685), (3801, 67430), (3982, 64365), (4291, 59730), (5430, 47201), (5973, 42910), (6130, 41811), (6335, 40458), (6743, 38010), (7602, 33715), (8582, 29865), (9195, 27874), (9955, 25746), (11946, 21455), (12670, 20229), (12873, 19910), (13486, 19005), (13937, 18390)]