20298840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{307}}^1$

素因数の和:369

約数の個数: 128

約数和(自身を含む): 66528000

約数和(自身を除く): 46229160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 29, 30, 38, 40, 57, 58, 60, 76, 87, 95, 114, 116, 120, 145, 152, 174, 190, 228, 232, 285, 290, 307, 348, 380, 435, 456, 551, 570, 580, 614, 696, 760, 870, 921, 1102, 1140, 1160, 1228, 1535, 1653, 1740, 1842, 2204, 2280, 2456, 2755, 3070, 3306, 3480, 3684, 4408, 4605, 5510, 5833, 6140, 6612, 7368, 8265, 8903, 9210, 11020, 11666, 12280, 13224, 16530, 17499, 17806, 18420, 22040, 23332, 26709, 29165, 33060, 34998, 35612, 36840, 44515, 46664, 53418, 58330, 66120, 69996, 71224, 87495, 89030, 106836, 116660, 133545, 139992, 169157, 174990, 178060, 213672, 233320, 267090, 338314, 349980, 356120, 507471, 534180, 676628, 699960, 845785, 1014942, 1068360, 1353256, 1691570, 2029884, 2537355, 3383140, 4059768, 5074710, 6766280, 10149420, 20298840]

約数ペア:

[(1, 20298840), (2, 10149420), (3, 6766280), (4, 5074710), (5, 4059768), (6, 3383140), (8, 2537355), (10, 2029884), (12, 1691570), (15, 1353256), (19, 1068360), (20, 1014942), (24, 845785), (29, 699960), (30, 676628), (38, 534180), (40, 507471), (57, 356120), (58, 349980), (60, 338314), (76, 267090), (87, 233320), (95, 213672), (114, 178060), (116, 174990), (120, 169157), (145, 139992), (152, 133545), (174, 116660), (190, 106836), (228, 89030), (232, 87495), (285, 71224), (290, 69996), (307, 66120), (348, 58330), (380, 53418), (435, 46664), (456, 44515), (551, 36840), (570, 35612), (580, 34998), (614, 33060), (696, 29165), (760, 26709), (870, 23332), (921, 22040), (1102, 18420), (1140, 17806), (1160, 17499), (1228, 16530), (1535, 13224), (1653, 12280), (1740, 11666), (1842, 11020), (2204, 9210), (2280, 8903), (2456, 8265), (2755, 7368), (3070, 6612), (3306, 6140), (3480, 5833), (3684, 5510), (4408, 4605)]