251319728

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{631}}^1$

素因数の和:754

約数の個数: 80

約数和(自身を含む): 556726272

約数和(自身を除く): 305406544

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 62, 73, 88, 124, 146, 176, 248, 292, 341, 496, 584, 631, 682, 803, 1168, 1262, 1364, 1606, 2263, 2524, 2728, 3212, 4526, 5048, 5456, 6424, 6941, 9052, 10096, 12848, 13882, 18104, 19561, 24893, 27764, 36208, 39122, 46063, 49786, 55528, 78244, 92126, 99572, 111056, 156488, 184252, 199144, 215171, 312976, 368504, 398288, 430342, 506693, 737008, 860684, 1013386, 1427953, 1721368, 2026772, 2855906, 3442736, 4053544, 5711812, 8107088, 11423624, 15707483, 22847248, 31414966, 62829932, 125659864, 251319728]

約数ペア:

[(1, 251319728), (2, 125659864), (4, 62829932), (8, 31414966), (11, 22847248), (16, 15707483), (22, 11423624), (31, 8107088), (44, 5711812), (62, 4053544), (73, 3442736), (88, 2855906), (124, 2026772), (146, 1721368), (176, 1427953), (248, 1013386), (292, 860684), (341, 737008), (496, 506693), (584, 430342), (631, 398288), (682, 368504), (803, 312976), (1168, 215171), (1262, 199144), (1364, 184252), (1606, 156488), (2263, 111056), (2524, 99572), (2728, 92126), (3212, 78244), (4526, 55528), (5048, 49786), (5456, 46063), (6424, 39122), (6941, 36208), (9052, 27764), (10096, 24893), (12848, 19561), (13882, 18104)]