90823610

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:287

約数の個数: 64

約数和(自身を含む): 179625600

約数和(自身を除く): 88801990

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 89, 95, 131, 178, 190, 205, 262, 410, 445, 655, 779, 890, 1310, 1558, 1691, 2489, 3382, 3649, 3895, 4978, 5371, 7298, 7790, 8455, 10742, 11659, 12445, 16910, 18245, 23318, 24890, 26855, 36490, 53710, 58295, 69331, 102049, 116590, 138662, 204098, 221521, 346655, 443042, 478019, 510245, 693310, 956038, 1020490, 1107605, 2215210, 2390095, 4780190, 9082361, 18164722, 45411805, 90823610]

約数ペア:

[(1, 90823610), (2, 45411805), (5, 18164722), (10, 9082361), (19, 4780190), (38, 2390095), (41, 2215210), (82, 1107605), (89, 1020490), (95, 956038), (131, 693310), (178, 510245), (190, 478019), (205, 443042), (262, 346655), (410, 221521), (445, 204098), (655, 138662), (779, 116590), (890, 102049), (1310, 69331), (1558, 58295), (1691, 53710), (2489, 36490), (3382, 26855), (3649, 24890), (3895, 23318), (4978, 18245), (5371, 16910), (7298, 12445), (7790, 11659), (8455, 10742)]