204513740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{863}}^1$

素因数の和:947

約数の個数: 72

約数和(自身を含む): 467897472

約数和(自身を除く): 263383732

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 164, 170, 205, 289, 340, 410, 578, 697, 820, 863, 1156, 1394, 1445, 1726, 2788, 2890, 3452, 3485, 4315, 5780, 6970, 8630, 11849, 13940, 14671, 17260, 23698, 29342, 35383, 47396, 58684, 59245, 70766, 73355, 118490, 141532, 146710, 176915, 236980, 249407, 293420, 353830, 498814, 601511, 707660, 997628, 1203022, 1247035, 2406044, 2494070, 3007555, 4988140, 6015110, 10225687, 12030220, 20451374, 40902748, 51128435, 102256870, 204513740]

約数ペア:

[(1, 204513740), (2, 102256870), (4, 51128435), (5, 40902748), (10, 20451374), (17, 12030220), (20, 10225687), (34, 6015110), (41, 4988140), (68, 3007555), (82, 2494070), (85, 2406044), (164, 1247035), (170, 1203022), (205, 997628), (289, 707660), (340, 601511), (410, 498814), (578, 353830), (697, 293420), (820, 249407), (863, 236980), (1156, 176915), (1394, 146710), (1445, 141532), (1726, 118490), (2788, 73355), (2890, 70766), (3452, 59245), (3485, 58684), (4315, 47396), (5780, 35383), (6970, 29342), (8630, 23698), (11849, 17260), (13940, 14671)]