71218420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{359}}^1$

素因数の和:497

約数の個数: 96

約数和(自身を含む): 186278400

約数和(自身を除く): 115059980

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 109, 130, 140, 182, 218, 260, 359, 364, 436, 455, 545, 718, 763, 910, 1090, 1417, 1436, 1526, 1795, 1820, 2180, 2513, 2834, 3052, 3590, 3815, 4667, 5026, 5668, 7085, 7180, 7630, 9334, 9919, 10052, 12565, 14170, 15260, 18668, 19838, 23335, 25130, 28340, 32669, 39131, 39676, 46670, 49595, 50260, 65338, 78262, 93340, 99190, 130676, 156524, 163345, 195655, 198380, 273917, 326690, 391310, 508703, 547834, 653380, 782620, 1017406, 1095668, 1369585, 2034812, 2543515, 2739170, 3560921, 5087030, 5478340, 7121842, 10174060, 14243684, 17804605, 35609210, 71218420]

約数ペア:

[(1, 71218420), (2, 35609210), (4, 17804605), (5, 14243684), (7, 10174060), (10, 7121842), (13, 5478340), (14, 5087030), (20, 3560921), (26, 2739170), (28, 2543515), (35, 2034812), (52, 1369585), (65, 1095668), (70, 1017406), (91, 782620), (109, 653380), (130, 547834), (140, 508703), (182, 391310), (218, 326690), (260, 273917), (359, 198380), (364, 195655), (436, 163345), (455, 156524), (545, 130676), (718, 99190), (763, 93340), (910, 78262), (1090, 65338), (1417, 50260), (1436, 49595), (1526, 46670), (1795, 39676), (1820, 39131), (2180, 32669), (2513, 28340), (2834, 25130), (3052, 23335), (3590, 19838), (3815, 18668), (4667, 15260), (5026, 14170), (5668, 12565), (7085, 10052), (7180, 9919), (7630, 9334)]