71970860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{857}}^1$

素因数の和:915

約数の個数: 96

約数和(自身を含む): 181621440

約数和(自身を除く): 109650580

約数列:

[1, 2, 4, 5, 10, 13, 17, 19, 20, 26, 34, 38, 52, 65, 68, 76, 85, 95, 130, 170, 190, 221, 247, 260, 323, 340, 380, 442, 494, 646, 857, 884, 988, 1105, 1235, 1292, 1615, 1714, 2210, 2470, 3230, 3428, 4199, 4285, 4420, 4940, 6460, 8398, 8570, 11141, 14569, 16283, 16796, 17140, 20995, 22282, 29138, 32566, 41990, 44564, 55705, 58276, 65132, 72845, 81415, 83980, 111410, 145690, 162830, 189397, 211679, 222820, 276811, 291380, 325660, 378794, 423358, 553622, 757588, 846716, 946985, 1058395, 1107244, 1384055, 1893970, 2116790, 2768110, 3598543, 3787940, 4233580, 5536220, 7197086, 14394172, 17992715, 35985430, 71970860]

約数ペア:

[(1, 71970860), (2, 35985430), (4, 17992715), (5, 14394172), (10, 7197086), (13, 5536220), (17, 4233580), (19, 3787940), (20, 3598543), (26, 2768110), (34, 2116790), (38, 1893970), (52, 1384055), (65, 1107244), (68, 1058395), (76, 946985), (85, 846716), (95, 757588), (130, 553622), (170, 423358), (190, 378794), (221, 325660), (247, 291380), (260, 276811), (323, 222820), (340, 211679), (380, 189397), (442, 162830), (494, 145690), (646, 111410), (857, 83980), (884, 81415), (988, 72845), (1105, 65132), (1235, 58276), (1292, 55705), (1615, 44564), (1714, 41990), (2210, 32566), (2470, 29138), (3230, 22282), (3428, 20995), (4199, 17140), (4285, 16796), (4420, 16283), (4940, 14569), (6460, 11141), (8398, 8570)]