278340995540

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^2\times {\mathrm{397}}^1\times {\mathrm{9421}}^1$

素因数の和:9949

約数の個数: 72

約数和(自身を含む): 595815509016

約数和(自身を除く): 317474513476

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 397, 610, 794, 1220, 1588, 1985, 3721, 3970, 7442, 7940, 9421, 14884, 18605, 18842, 24217, 37210, 37684, 47105, 48434, 74420, 94210, 96868, 121085, 188420, 242170, 484340, 574681, 1149362, 1477237, 2298724, 2873405, 2954474, 3740137, 5746810, 5908948, 7386185, 7480274, 11493620, 14772370, 14960548, 18700685, 29544740, 35055541, 37401370, 70111082, 74802740, 140222164, 175277705, 228148357, 350555410, 456296714, 701110820, 912593428, 1140741785, 2281483570, 4562967140, 13917049777, 27834099554, 55668199108, 69585248885, 139170497770, 278340995540]

約数ペア:

[(1, 278340995540), (2, 139170497770), (4, 69585248885), (5, 55668199108), (10, 27834099554), (20, 13917049777), (61, 4562967140), (122, 2281483570), (244, 1140741785), (305, 912593428), (397, 701110820), (610, 456296714), (794, 350555410), (1220, 228148357), (1588, 175277705), (1985, 140222164), (3721, 74802740), (3970, 70111082), (7442, 37401370), (7940, 35055541), (9421, 29544740), (14884, 18700685), (18605, 14960548), (18842, 14772370), (24217, 11493620), (37210, 7480274), (37684, 7386185), (47105, 5908948), (48434, 5746810), (74420, 3740137), (94210, 2954474), (96868, 2873405), (121085, 2298724), (188420, 1477237), (242170, 1149362), (484340, 574681)]