238765780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{239}}^2$

素因数の和:517

約数の個数: 72

約数和(自身を含む): 578198880

約数和(自身を除く): 339433100

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 239, 380, 418, 478, 836, 956, 1045, 1195, 2090, 2390, 2629, 4180, 4541, 4780, 5258, 9082, 10516, 13145, 18164, 22705, 26290, 45410, 49951, 52580, 57121, 90820, 99902, 114242, 199804, 228484, 249755, 285605, 499510, 571210, 628331, 999020, 1085299, 1142420, 1256662, 2170598, 2513324, 3141655, 4341196, 5426495, 6283310, 10852990, 11938289, 12566620, 21705980, 23876578, 47753156, 59691445, 119382890, 238765780]

約数ペア:

[(1, 238765780), (2, 119382890), (4, 59691445), (5, 47753156), (10, 23876578), (11, 21705980), (19, 12566620), (20, 11938289), (22, 10852990), (38, 6283310), (44, 5426495), (55, 4341196), (76, 3141655), (95, 2513324), (110, 2170598), (190, 1256662), (209, 1142420), (220, 1085299), (239, 999020), (380, 628331), (418, 571210), (478, 499510), (836, 285605), (956, 249755), (1045, 228484), (1195, 199804), (2090, 114242), (2390, 99902), (2629, 90820), (4180, 57121), (4541, 52580), (4780, 49951), (5258, 45410), (9082, 26290), (10516, 22705), (13145, 18164)]