1638907320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31253}}^1$

素因数の和:31309

約数の個数: 128

約数和(自身を含む): 5400691200

約数和(自身を除く): 3761783880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 23, 24, 30, 38, 40, 46, 57, 60, 69, 76, 92, 95, 114, 115, 120, 138, 152, 184, 190, 228, 230, 276, 285, 345, 380, 437, 456, 460, 552, 570, 690, 760, 874, 920, 1140, 1311, 1380, 1748, 2185, 2280, 2622, 2760, 3496, 4370, 5244, 6555, 8740, 10488, 13110, 17480, 26220, 31253, 52440, 62506, 93759, 125012, 156265, 187518, 250024, 312530, 375036, 468795, 593807, 625060, 718819, 750072, 937590, 1187614, 1250120, 1437638, 1781421, 1875180, 2156457, 2375228, 2875276, 2969035, 3562842, 3594095, 3750360, 4312914, 4750456, 5750552, 5938070, 7125684, 7188190, 8625828, 8907105, 10782285, 11876140, 13657561, 14251368, 14376380, 17251656, 17814210, 21564570, 23752280, 27315122, 28752760, 35628420, 40972683, 43129140, 54630244, 68287805, 71256840, 81945366, 86258280, 109260488, 136575610, 163890732, 204863415, 273151220, 327781464, 409726830, 546302440, 819453660, 1638907320]

約数ペア:

[(1, 1638907320), (2, 819453660), (3, 546302440), (4, 409726830), (5, 327781464), (6, 273151220), (8, 204863415), (10, 163890732), (12, 136575610), (15, 109260488), (19, 86258280), (20, 81945366), (23, 71256840), (24, 68287805), (30, 54630244), (38, 43129140), (40, 40972683), (46, 35628420), (57, 28752760), (60, 27315122), (69, 23752280), (76, 21564570), (92, 17814210), (95, 17251656), (114, 14376380), (115, 14251368), (120, 13657561), (138, 11876140), (152, 10782285), (184, 8907105), (190, 8625828), (228, 7188190), (230, 7125684), (276, 5938070), (285, 5750552), (345, 4750456), (380, 4312914), (437, 3750360), (456, 3594095), (460, 3562842), (552, 2969035), (570, 2875276), (690, 2375228), (760, 2156457), (874, 1875180), (920, 1781421), (1140, 1437638), (1311, 1250120), (1380, 1187614), (1748, 937590), (2185, 750072), (2280, 718819), (2622, 625060), (2760, 593807), (3496, 468795), (4370, 375036), (5244, 312530), (6555, 250024), (8740, 187518), (10488, 156265), (13110, 125012), (17480, 93759), (26220, 62506), (31253, 52440)]