1251987080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:367

約数の個数: 128

約数和(自身を含む): 3003264000

約数和(自身を除く): 1751276920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 59, 62, 109, 118, 124, 155, 157, 218, 236, 248, 295, 310, 314, 436, 472, 545, 590, 620, 628, 785, 872, 1090, 1180, 1240, 1256, 1570, 1829, 2180, 2360, 3140, 3379, 3658, 4360, 4867, 6280, 6431, 6758, 7316, 9145, 9263, 9734, 12862, 13516, 14632, 16895, 17113, 18290, 18526, 19468, 24335, 25724, 27032, 32155, 33790, 34226, 36580, 37052, 38936, 46315, 48670, 51448, 64310, 67580, 68452, 73160, 74104, 85565, 92630, 97340, 128620, 135160, 136904, 171130, 185260, 194680, 199361, 257240, 287153, 342260, 370520, 398722, 530503, 574306, 684520, 797444, 996805, 1009667, 1061006, 1148612, 1435765, 1594888, 1993610, 2019334, 2122012, 2297224, 2652515, 2871530, 3987220, 4038668, 4244024, 5048335, 5305030, 5743060, 7974440, 8077336, 10096670, 10610060, 11486120, 20193340, 21220120, 31299677, 40386680, 62599354, 125198708, 156498385, 250397416, 312996770, 625993540, 1251987080]

約数ペア:

[(1, 1251987080), (2, 625993540), (4, 312996770), (5, 250397416), (8, 156498385), (10, 125198708), (20, 62599354), (31, 40386680), (40, 31299677), (59, 21220120), (62, 20193340), (109, 11486120), (118, 10610060), (124, 10096670), (155, 8077336), (157, 7974440), (218, 5743060), (236, 5305030), (248, 5048335), (295, 4244024), (310, 4038668), (314, 3987220), (436, 2871530), (472, 2652515), (545, 2297224), (590, 2122012), (620, 2019334), (628, 1993610), (785, 1594888), (872, 1435765), (1090, 1148612), (1180, 1061006), (1240, 1009667), (1256, 996805), (1570, 797444), (1829, 684520), (2180, 574306), (2360, 530503), (3140, 398722), (3379, 370520), (3658, 342260), (4360, 287153), (4867, 257240), (6280, 199361), (6431, 194680), (6758, 185260), (7316, 171130), (9145, 136904), (9263, 135160), (9734, 128620), (12862, 97340), (13516, 92630), (14632, 85565), (16895, 74104), (17113, 73160), (18290, 68452), (18526, 67580), (19468, 64310), (24335, 51448), (25724, 48670), (27032, 46315), (32155, 38936), (33790, 37052), (34226, 36580)]