78729040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:177

約数の個数: 160

約数和(自身を含む): 215048736

約数和(自身を除く): 136319696

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 61, 65, 68, 73, 80, 85, 104, 122, 130, 136, 146, 170, 208, 221, 244, 260, 272, 292, 305, 340, 365, 442, 488, 520, 584, 610, 680, 730, 793, 884, 949, 976, 1037, 1040, 1105, 1168, 1220, 1241, 1360, 1460, 1586, 1768, 1898, 2074, 2210, 2440, 2482, 2920, 3172, 3536, 3796, 3965, 4148, 4420, 4453, 4745, 4880, 4964, 5185, 5840, 6205, 6344, 7592, 7930, 8296, 8840, 8906, 9490, 9928, 10370, 12410, 12688, 13481, 15184, 15860, 16133, 16592, 17680, 17812, 18980, 19856, 20740, 22265, 24820, 26962, 31720, 32266, 35624, 37960, 41480, 44530, 49640, 53924, 57889, 63440, 64532, 67405, 71248, 75701, 75920, 80665, 82960, 89060, 99280, 107848, 115778, 129064, 134810, 151402, 161330, 178120, 215696, 231556, 258128, 269620, 289445, 302804, 322660, 356240, 378505, 463112, 539240, 578890, 605608, 645320, 757010, 926224, 984113, 1078480, 1157780, 1211216, 1290640, 1514020, 1968226, 2315560, 3028040, 3936452, 4631120, 4920565, 6056080, 7872904, 9841130, 15745808, 19682260, 39364520, 78729040]

約数ペア:

[(1, 78729040), (2, 39364520), (4, 19682260), (5, 15745808), (8, 9841130), (10, 7872904), (13, 6056080), (16, 4920565), (17, 4631120), (20, 3936452), (26, 3028040), (34, 2315560), (40, 1968226), (52, 1514020), (61, 1290640), (65, 1211216), (68, 1157780), (73, 1078480), (80, 984113), (85, 926224), (104, 757010), (122, 645320), (130, 605608), (136, 578890), (146, 539240), (170, 463112), (208, 378505), (221, 356240), (244, 322660), (260, 302804), (272, 289445), (292, 269620), (305, 258128), (340, 231556), (365, 215696), (442, 178120), (488, 161330), (520, 151402), (584, 134810), (610, 129064), (680, 115778), (730, 107848), (793, 99280), (884, 89060), (949, 82960), (976, 80665), (1037, 75920), (1040, 75701), (1105, 71248), (1168, 67405), (1220, 64532), (1241, 63440), (1360, 57889), (1460, 53924), (1586, 49640), (1768, 44530), (1898, 41480), (2074, 37960), (2210, 35624), (2440, 32266), (2482, 31720), (2920, 26962), (3172, 24820), (3536, 22265), (3796, 20740), (3965, 19856), (4148, 18980), (4420, 17812), (4453, 17680), (4745, 16592), (4880, 16133), (4964, 15860), (5185, 15184), (5840, 13481), (6205, 12688), (6344, 12410), (7592, 10370), (7930, 9928), (8296, 9490), (8840, 8906)]