661003320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{1237}}^1$

素因数の和:1385

約数の個数: 128

約数和(自身を含む): 2044779840

約数和(自身を除く): 1383776520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 73, 120, 122, 146, 183, 219, 244, 292, 305, 365, 366, 438, 488, 584, 610, 730, 732, 876, 915, 1095, 1220, 1237, 1460, 1464, 1752, 1830, 2190, 2440, 2474, 2920, 3660, 3711, 4380, 4453, 4948, 6185, 7320, 7422, 8760, 8906, 9896, 12370, 13359, 14844, 17812, 18555, 22265, 24740, 26718, 29688, 35624, 37110, 44530, 49480, 53436, 66795, 74220, 75457, 89060, 90301, 106872, 133590, 148440, 150914, 178120, 180602, 226371, 267180, 270903, 301828, 361204, 377285, 451505, 452742, 534360, 541806, 603656, 722408, 754570, 903010, 905484, 1083612, 1131855, 1354515, 1509140, 1806020, 1810968, 2167224, 2263710, 2709030, 3018280, 3612040, 4527420, 5418060, 5508361, 9054840, 10836120, 11016722, 16525083, 22033444, 27541805, 33050166, 44066888, 55083610, 66100332, 82625415, 110167220, 132200664, 165250830, 220334440, 330501660, 661003320]

約数ペア:

[(1, 661003320), (2, 330501660), (3, 220334440), (4, 165250830), (5, 132200664), (6, 110167220), (8, 82625415), (10, 66100332), (12, 55083610), (15, 44066888), (20, 33050166), (24, 27541805), (30, 22033444), (40, 16525083), (60, 11016722), (61, 10836120), (73, 9054840), (120, 5508361), (122, 5418060), (146, 4527420), (183, 3612040), (219, 3018280), (244, 2709030), (292, 2263710), (305, 2167224), (365, 1810968), (366, 1806020), (438, 1509140), (488, 1354515), (584, 1131855), (610, 1083612), (730, 905484), (732, 903010), (876, 754570), (915, 722408), (1095, 603656), (1220, 541806), (1237, 534360), (1460, 452742), (1464, 451505), (1752, 377285), (1830, 361204), (2190, 301828), (2440, 270903), (2474, 267180), (2920, 226371), (3660, 180602), (3711, 178120), (4380, 150914), (4453, 148440), (4948, 133590), (6185, 106872), (7320, 90301), (7422, 89060), (8760, 75457), (8906, 74220), (9896, 66795), (12370, 53436), (13359, 49480), (14844, 44530), (17812, 37110), (18555, 35624), (22265, 29688), (24740, 26718)]