2080100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:117

約数の個数: 72

約数和(自身を含む): 5166336

約数和(自身を除く): 3086236

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 31, 44, 50, 55, 61, 62, 100, 110, 122, 124, 155, 220, 244, 275, 305, 310, 341, 550, 610, 620, 671, 682, 775, 1100, 1220, 1342, 1364, 1525, 1550, 1705, 1891, 2684, 3050, 3100, 3355, 3410, 3782, 6100, 6710, 6820, 7564, 8525, 9455, 13420, 16775, 17050, 18910, 20801, 33550, 34100, 37820, 41602, 47275, 67100, 83204, 94550, 104005, 189100, 208010, 416020, 520025, 1040050, 2080100]

約数ペア:

[(1, 2080100), (2, 1040050), (4, 520025), (5, 416020), (10, 208010), (11, 189100), (20, 104005), (22, 94550), (25, 83204), (31, 67100), (44, 47275), (50, 41602), (55, 37820), (61, 34100), (62, 33550), (100, 20801), (110, 18910), (122, 17050), (124, 16775), (155, 13420), (220, 9455), (244, 8525), (275, 7564), (305, 6820), (310, 6710), (341, 6100), (550, 3782), (610, 3410), (620, 3355), (671, 3100), (682, 3050), (775, 2684), (1100, 1891), (1220, 1705), (1342, 1550), (1364, 1525)]