78931320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2663}}^1$

素因数の和:2709

約数の個数: 128

約数和(自身を含む): 268531200

約数和(自身を除く): 189599880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 19, 20, 24, 26, 30, 38, 39, 40, 52, 57, 60, 65, 76, 78, 95, 104, 114, 120, 130, 152, 156, 190, 195, 228, 247, 260, 285, 312, 380, 390, 456, 494, 520, 570, 741, 760, 780, 988, 1140, 1235, 1482, 1560, 1976, 2280, 2470, 2663, 2964, 3705, 4940, 5326, 5928, 7410, 7989, 9880, 10652, 13315, 14820, 15978, 21304, 26630, 29640, 31956, 34619, 39945, 50597, 53260, 63912, 69238, 79890, 101194, 103857, 106520, 138476, 151791, 159780, 173095, 202388, 207714, 252985, 276952, 303582, 319560, 346190, 404776, 415428, 505970, 519285, 607164, 657761, 692380, 758955, 830856, 1011940, 1038570, 1214328, 1315522, 1384760, 1517910, 1973283, 2023880, 2077140, 2631044, 3035820, 3288805, 3946566, 4154280, 5262088, 6071640, 6577610, 7893132, 9866415, 13155220, 15786264, 19732830, 26310440, 39465660, 78931320]

約数ペア:

[(1, 78931320), (2, 39465660), (3, 26310440), (4, 19732830), (5, 15786264), (6, 13155220), (8, 9866415), (10, 7893132), (12, 6577610), (13, 6071640), (15, 5262088), (19, 4154280), (20, 3946566), (24, 3288805), (26, 3035820), (30, 2631044), (38, 2077140), (39, 2023880), (40, 1973283), (52, 1517910), (57, 1384760), (60, 1315522), (65, 1214328), (76, 1038570), (78, 1011940), (95, 830856), (104, 758955), (114, 692380), (120, 657761), (130, 607164), (152, 519285), (156, 505970), (190, 415428), (195, 404776), (228, 346190), (247, 319560), (260, 303582), (285, 276952), (312, 252985), (380, 207714), (390, 202388), (456, 173095), (494, 159780), (520, 151791), (570, 138476), (741, 106520), (760, 103857), (780, 101194), (988, 79890), (1140, 69238), (1235, 63912), (1482, 53260), (1560, 50597), (1976, 39945), (2280, 34619), (2470, 31956), (2663, 29640), (2964, 26630), (3705, 21304), (4940, 15978), (5326, 14820), (5928, 13315), (7410, 10652), (7989, 9880)]