16640800

素因数分解:

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

素因数の和:123

約数の個数: 144

約数和(自身を含む): 46497024

約数和(自身を除く): 29856224

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 31, 32, 40, 44, 50, 55, 61, 62, 80, 88, 100, 110, 122, 124, 155, 160, 176, 200, 220, 244, 248, 275, 305, 310, 341, 352, 400, 440, 488, 496, 550, 610, 620, 671, 682, 775, 800, 880, 976, 992, 1100, 1220, 1240, 1342, 1364, 1525, 1550, 1705, 1760, 1891, 1952, 2200, 2440, 2480, 2684, 2728, 3050, 3100, 3355, 3410, 3782, 4400, 4880, 4960, 5368, 5456, 6100, 6200, 6710, 6820, 7564, 8525, 8800, 9455, 9760, 10736, 10912, 12200, 12400, 13420, 13640, 15128, 16775, 17050, 18910, 20801, 21472, 24400, 24800, 26840, 27280, 30256, 33550, 34100, 37820, 41602, 47275, 48800, 53680, 54560, 60512, 67100, 68200, 75640, 83204, 94550, 104005, 107360, 134200, 136400, 151280, 166408, 189100, 208010, 268400, 272800, 302560, 332816, 378200, 416020, 520025, 536800, 665632, 756400, 832040, 1040050, 1512800, 1664080, 2080100, 3328160, 4160200, 8320400, 16640800]

約数ペア:

[(1, 16640800), (2, 8320400), (4, 4160200), (5, 3328160), (8, 2080100), (10, 1664080), (11, 1512800), (16, 1040050), (20, 832040), (22, 756400), (25, 665632), (31, 536800), (32, 520025), (40, 416020), (44, 378200), (50, 332816), (55, 302560), (61, 272800), (62, 268400), (80, 208010), (88, 189100), (100, 166408), (110, 151280), (122, 136400), (124, 134200), (155, 107360), (160, 104005), (176, 94550), (200, 83204), (220, 75640), (244, 68200), (248, 67100), (275, 60512), (305, 54560), (310, 53680), (341, 48800), (352, 47275), (400, 41602), (440, 37820), (488, 34100), (496, 33550), (550, 30256), (610, 27280), (620, 26840), (671, 24800), (682, 24400), (775, 21472), (800, 20801), (880, 18910), (976, 17050), (992, 16775), (1100, 15128), (1220, 13640), (1240, 13420), (1342, 12400), (1364, 12200), (1525, 10912), (1550, 10736), (1705, 9760), (1760, 9455), (1891, 8800), (1952, 8525), (2200, 7564), (2440, 6820), (2480, 6710), (2684, 6200), (2728, 6100), (3050, 5456), (3100, 5368), (3355, 4960), (3410, 4880), (3782, 4400)]