71505980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{389}}^1$

素因数の和:519

約数の個数: 96

約数和(自身を含む): 187125120

約数和(自身を除く): 115619140

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 101, 130, 140, 182, 202, 260, 364, 389, 404, 455, 505, 707, 778, 910, 1010, 1313, 1414, 1556, 1820, 1945, 2020, 2626, 2723, 2828, 3535, 3890, 5057, 5252, 5446, 6565, 7070, 7780, 9191, 10114, 10892, 13130, 13615, 14140, 18382, 20228, 25285, 26260, 27230, 35399, 36764, 39289, 45955, 50570, 54460, 70798, 78578, 91910, 101140, 141596, 157156, 176995, 183820, 196445, 275023, 353990, 392890, 510757, 550046, 707980, 785780, 1021514, 1100092, 1375115, 2043028, 2553785, 2750230, 3575299, 5107570, 5500460, 7150598, 10215140, 14301196, 17876495, 35752990, 71505980]

約数ペア:

[(1, 71505980), (2, 35752990), (4, 17876495), (5, 14301196), (7, 10215140), (10, 7150598), (13, 5500460), (14, 5107570), (20, 3575299), (26, 2750230), (28, 2553785), (35, 2043028), (52, 1375115), (65, 1100092), (70, 1021514), (91, 785780), (101, 707980), (130, 550046), (140, 510757), (182, 392890), (202, 353990), (260, 275023), (364, 196445), (389, 183820), (404, 176995), (455, 157156), (505, 141596), (707, 101140), (778, 91910), (910, 78578), (1010, 70798), (1313, 54460), (1414, 50570), (1556, 45955), (1820, 39289), (1945, 36764), (2020, 35399), (2626, 27230), (2723, 26260), (2828, 25285), (3535, 20228), (3890, 18382), (5057, 14140), (5252, 13615), (5446, 13130), (6565, 10892), (7070, 10114), (7780, 9191)]