90446840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:421

約数の個数: 128

約数和(自身を含む): 241920000

約数和(自身を除く): 151473160

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 31, 38, 40, 44, 55, 62, 76, 88, 95, 110, 124, 152, 155, 190, 209, 220, 248, 310, 341, 349, 380, 418, 440, 589, 620, 682, 698, 760, 836, 1045, 1178, 1240, 1364, 1396, 1672, 1705, 1745, 2090, 2356, 2728, 2792, 2945, 3410, 3490, 3839, 4180, 4712, 5890, 6479, 6631, 6820, 6980, 7678, 8360, 10819, 11780, 12958, 13262, 13640, 13960, 15356, 19195, 21638, 23560, 25916, 26524, 30712, 32395, 33155, 38390, 43276, 51832, 53048, 54095, 64790, 66310, 72941, 76780, 86552, 108190, 119009, 129580, 132620, 145882, 153560, 205561, 216380, 238018, 259160, 265240, 291764, 364705, 411122, 432760, 476036, 583528, 595045, 729410, 822244, 952072, 1027805, 1190090, 1458820, 1644488, 2055610, 2261171, 2380180, 2917640, 4111220, 4522342, 4760360, 8222440, 9044684, 11305855, 18089368, 22611710, 45223420, 90446840]

約数ペア:

[(1, 90446840), (2, 45223420), (4, 22611710), (5, 18089368), (8, 11305855), (10, 9044684), (11, 8222440), (19, 4760360), (20, 4522342), (22, 4111220), (31, 2917640), (38, 2380180), (40, 2261171), (44, 2055610), (55, 1644488), (62, 1458820), (76, 1190090), (88, 1027805), (95, 952072), (110, 822244), (124, 729410), (152, 595045), (155, 583528), (190, 476036), (209, 432760), (220, 411122), (248, 364705), (310, 291764), (341, 265240), (349, 259160), (380, 238018), (418, 216380), (440, 205561), (589, 153560), (620, 145882), (682, 132620), (698, 129580), (760, 119009), (836, 108190), (1045, 86552), (1178, 76780), (1240, 72941), (1364, 66310), (1396, 64790), (1672, 54095), (1705, 53048), (1745, 51832), (2090, 43276), (2356, 38390), (2728, 33155), (2792, 32395), (2945, 30712), (3410, 26524), (3490, 25916), (3839, 23560), (4180, 21638), (4712, 19195), (5890, 15356), (6479, 13960), (6631, 13640), (6820, 13262), (6980, 12958), (7678, 11780), (8360, 10819)]