155329720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{307}}^1$

素因数の和:477

約数の個数: 128

約数和(自身を含む): 434649600

約数和(自身を除く): 279319880

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 139, 140, 182, 260, 278, 280, 307, 364, 455, 520, 556, 614, 695, 728, 910, 973, 1112, 1228, 1390, 1535, 1807, 1820, 1946, 2149, 2456, 2780, 3070, 3614, 3640, 3892, 3991, 4298, 4865, 5560, 6140, 7228, 7784, 7982, 8596, 9035, 9730, 10745, 12280, 12649, 14456, 15964, 17192, 18070, 19460, 19955, 21490, 25298, 27937, 31928, 36140, 38920, 39910, 42673, 42980, 50596, 55874, 63245, 72280, 79820, 85346, 85960, 101192, 111748, 126490, 139685, 159640, 170692, 213365, 223496, 252980, 279370, 298711, 341384, 426730, 505960, 554749, 558740, 597422, 853460, 1109498, 1117480, 1194844, 1493555, 1706920, 2218996, 2389688, 2773745, 2987110, 3883243, 4437992, 5547490, 5974220, 7766486, 11094980, 11948440, 15532972, 19416215, 22189960, 31065944, 38832430, 77664860, 155329720]

約数ペア:

[(1, 155329720), (2, 77664860), (4, 38832430), (5, 31065944), (7, 22189960), (8, 19416215), (10, 15532972), (13, 11948440), (14, 11094980), (20, 7766486), (26, 5974220), (28, 5547490), (35, 4437992), (40, 3883243), (52, 2987110), (56, 2773745), (65, 2389688), (70, 2218996), (91, 1706920), (104, 1493555), (130, 1194844), (139, 1117480), (140, 1109498), (182, 853460), (260, 597422), (278, 558740), (280, 554749), (307, 505960), (364, 426730), (455, 341384), (520, 298711), (556, 279370), (614, 252980), (695, 223496), (728, 213365), (910, 170692), (973, 159640), (1112, 139685), (1228, 126490), (1390, 111748), (1535, 101192), (1807, 85960), (1820, 85346), (1946, 79820), (2149, 72280), (2456, 63245), (2780, 55874), (3070, 50596), (3614, 42980), (3640, 42673), (3892, 39910), (3991, 38920), (4298, 36140), (4865, 31928), (5560, 27937), (6140, 25298), (7228, 21490), (7784, 19955), (7982, 19460), (8596, 18070), (9035, 17192), (9730, 15964), (10745, 14456), (12280, 12649)]