815804920

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{97}}^1\times {\mathrm{613}}^1$

素因数の和:742

約数の個数: 128

約数和(自身を含む): 2166192000

約数和(自身を除く): 1350387080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 97, 98, 140, 194, 196, 245, 280, 343, 388, 392, 485, 490, 613, 679, 686, 776, 970, 980, 1226, 1358, 1372, 1715, 1940, 1960, 2452, 2716, 2744, 3065, 3395, 3430, 3880, 4291, 4753, 4904, 5432, 6130, 6790, 6860, 8582, 9506, 12260, 13580, 13720, 17164, 19012, 21455, 23765, 24520, 27160, 30037, 33271, 34328, 38024, 42910, 47530, 59461, 60074, 66542, 85820, 95060, 118922, 120148, 133084, 150185, 166355, 171640, 190120, 210259, 237844, 240296, 266168, 297305, 300370, 332710, 416227, 420518, 475688, 594610, 600740, 665420, 832454, 841036, 1051295, 1189220, 1201480, 1330840, 1664908, 1682072, 2081135, 2102590, 2378440, 2913589, 3329816, 4162270, 4205180, 5827178, 8324540, 8410360, 11654356, 14567945, 16649080, 20395123, 23308712, 29135890, 40790246, 58271780, 81580492, 101975615, 116543560, 163160984, 203951230, 407902460, 815804920]

約数ペア:

[(1, 815804920), (2, 407902460), (4, 203951230), (5, 163160984), (7, 116543560), (8, 101975615), (10, 81580492), (14, 58271780), (20, 40790246), (28, 29135890), (35, 23308712), (40, 20395123), (49, 16649080), (56, 14567945), (70, 11654356), (97, 8410360), (98, 8324540), (140, 5827178), (194, 4205180), (196, 4162270), (245, 3329816), (280, 2913589), (343, 2378440), (388, 2102590), (392, 2081135), (485, 1682072), (490, 1664908), (613, 1330840), (679, 1201480), (686, 1189220), (776, 1051295), (970, 841036), (980, 832454), (1226, 665420), (1358, 600740), (1372, 594610), (1715, 475688), (1940, 420518), (1960, 416227), (2452, 332710), (2716, 300370), (2744, 297305), (3065, 266168), (3395, 240296), (3430, 237844), (3880, 210259), (4291, 190120), (4753, 171640), (4904, 166355), (5432, 150185), (6130, 133084), (6790, 120148), (6860, 118922), (8582, 95060), (9506, 85820), (12260, 66542), (13580, 60074), (13720, 59461), (17164, 47530), (19012, 42910), (21455, 38024), (23765, 34328), (24520, 33271), (27160, 30037)]