815983280

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{131}}^1\times {\mathrm{227}}^1$

素因数の和:392

約数の個数: 160

約数和(自身を含む): 2239142400

約数和(自身を除く): 1423159120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 131, 140, 196, 227, 245, 262, 280, 343, 392, 454, 490, 524, 560, 655, 686, 784, 908, 917, 980, 1048, 1135, 1310, 1372, 1589, 1715, 1816, 1834, 1960, 2096, 2270, 2620, 2744, 3178, 3430, 3632, 3668, 3920, 4540, 4585, 5240, 5488, 6356, 6419, 6860, 7336, 7945, 9080, 9170, 10480, 11123, 12712, 12838, 13720, 14672, 15890, 18160, 18340, 22246, 25424, 25676, 27440, 29737, 31780, 32095, 36680, 44492, 44933, 51352, 55615, 59474, 63560, 64190, 73360, 77861, 88984, 89866, 102704, 111230, 118948, 127120, 128380, 148685, 155722, 177968, 179732, 208159, 222460, 224665, 237896, 256760, 297370, 311444, 359464, 389305, 416318, 444920, 449330, 475792, 513520, 594740, 622888, 718928, 778610, 832636, 889840, 898660, 1040795, 1189480, 1245776, 1457113, 1557220, 1665272, 1797320, 2081590, 2378960, 2914226, 3114440, 3330544, 3594640, 4163180, 5828452, 6228880, 7285565, 8326360, 10199791, 11656904, 14571130, 16652720, 20399582, 23313808, 29142260, 40799164, 50998955, 58284520, 81598328, 101997910, 116569040, 163196656, 203995820, 407991640, 815983280]

約数ペア:

[(1, 815983280), (2, 407991640), (4, 203995820), (5, 163196656), (7, 116569040), (8, 101997910), (10, 81598328), (14, 58284520), (16, 50998955), (20, 40799164), (28, 29142260), (35, 23313808), (40, 20399582), (49, 16652720), (56, 14571130), (70, 11656904), (80, 10199791), (98, 8326360), (112, 7285565), (131, 6228880), (140, 5828452), (196, 4163180), (227, 3594640), (245, 3330544), (262, 3114440), (280, 2914226), (343, 2378960), (392, 2081590), (454, 1797320), (490, 1665272), (524, 1557220), (560, 1457113), (655, 1245776), (686, 1189480), (784, 1040795), (908, 898660), (917, 889840), (980, 832636), (1048, 778610), (1135, 718928), (1310, 622888), (1372, 594740), (1589, 513520), (1715, 475792), (1816, 449330), (1834, 444920), (1960, 416318), (2096, 389305), (2270, 359464), (2620, 311444), (2744, 297370), (3178, 256760), (3430, 237896), (3632, 224665), (3668, 222460), (3920, 208159), (4540, 179732), (4585, 177968), (5240, 155722), (5488, 148685), (6356, 128380), (6419, 127120), (6860, 118948), (7336, 111230), (7945, 102704), (9080, 89866), (9170, 88984), (10480, 77861), (11123, 73360), (12712, 64190), (12838, 63560), (13720, 59474), (14672, 55615), (15890, 51352), (18160, 44933), (18340, 44492), (22246, 36680), (25424, 32095), (25676, 31780), (27440, 29737)]