890136170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{419}}^1$

素因数の和:564

約数の個数: 128

約数和(自身を含む): 2090188800

約数和(自身を除く): 1200052630

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 31, 35, 55, 62, 70, 77, 89, 110, 154, 155, 178, 217, 310, 341, 385, 419, 434, 445, 623, 682, 770, 838, 890, 979, 1085, 1246, 1705, 1958, 2095, 2170, 2387, 2759, 2933, 3115, 3410, 4190, 4609, 4774, 4895, 5518, 5866, 6230, 6853, 9218, 9790, 11935, 12989, 13706, 13795, 14665, 19313, 23045, 23870, 25978, 27590, 29330, 30349, 32263, 34265, 37291, 38626, 46090, 60698, 64526, 64945, 68530, 74582, 90923, 96565, 129890, 142879, 151745, 161315, 181846, 186455, 193130, 212443, 261037, 285758, 303490, 322630, 372910, 410201, 424886, 454615, 522074, 714395, 820402, 909230, 1000153, 1062215, 1156021, 1305185, 1428790, 2000306, 2051005, 2124430, 2312042, 2610370, 2871407, 4102010, 5000765, 5742814, 5780105, 8092147, 10001530, 11560210, 12716231, 14357035, 16184294, 25432462, 28714070, 40460735, 63581155, 80921470, 89013617, 127162310, 178027234, 445068085, 890136170]

約数ペア:

[(1, 890136170), (2, 445068085), (5, 178027234), (7, 127162310), (10, 89013617), (11, 80921470), (14, 63581155), (22, 40460735), (31, 28714070), (35, 25432462), (55, 16184294), (62, 14357035), (70, 12716231), (77, 11560210), (89, 10001530), (110, 8092147), (154, 5780105), (155, 5742814), (178, 5000765), (217, 4102010), (310, 2871407), (341, 2610370), (385, 2312042), (419, 2124430), (434, 2051005), (445, 2000306), (623, 1428790), (682, 1305185), (770, 1156021), (838, 1062215), (890, 1000153), (979, 909230), (1085, 820402), (1246, 714395), (1705, 522074), (1958, 454615), (2095, 424886), (2170, 410201), (2387, 372910), (2759, 322630), (2933, 303490), (3115, 285758), (3410, 261037), (4190, 212443), (4609, 193130), (4774, 186455), (4895, 181846), (5518, 161315), (5866, 151745), (6230, 142879), (6853, 129890), (9218, 96565), (9790, 90923), (11935, 74582), (12989, 68530), (13706, 64945), (13795, 64526), (14665, 60698), (19313, 46090), (23045, 38626), (23870, 37291), (25978, 34265), (27590, 32263), (29330, 30349)]