645450256

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1\times {\mathrm{421}}^1$

素因数の和:752

約数の個数: 80

約数和(自身を含む): 1416623616

約数和(自身を除く): 771173360

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 62, 88, 124, 176, 248, 281, 341, 421, 496, 562, 682, 842, 1124, 1364, 1684, 2248, 2728, 3091, 3368, 4496, 4631, 5456, 6182, 6736, 8711, 9262, 12364, 13051, 17422, 18524, 24728, 26102, 34844, 37048, 49456, 52204, 69688, 74096, 95821, 104408, 118301, 139376, 143561, 191642, 208816, 236602, 287122, 383284, 473204, 574244, 766568, 946408, 1148488, 1301311, 1533136, 1892816, 2296976, 2602622, 3667331, 5205244, 7334662, 10410488, 14669324, 20820976, 29338648, 40340641, 58677296, 80681282, 161362564, 322725128, 645450256]

約数ペア:

[(1, 645450256), (2, 322725128), (4, 161362564), (8, 80681282), (11, 58677296), (16, 40340641), (22, 29338648), (31, 20820976), (44, 14669324), (62, 10410488), (88, 7334662), (124, 5205244), (176, 3667331), (248, 2602622), (281, 2296976), (341, 1892816), (421, 1533136), (496, 1301311), (562, 1148488), (682, 946408), (842, 766568), (1124, 574244), (1364, 473204), (1684, 383284), (2248, 287122), (2728, 236602), (3091, 208816), (3368, 191642), (4496, 143561), (4631, 139376), (5456, 118301), (6182, 104408), (6736, 95821), (8711, 74096), (9262, 69688), (12364, 52204), (13051, 49456), (17422, 37048), (18524, 34844), (24728, 26102)]