278310492040

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{647}}^1\times {\mathrm{219467}}^1$

素因数の和:220139

約数の個数: 96

約数和(自身を含む): 729564304320

約数和(自身を除く): 451253812280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 647, 980, 1294, 1960, 2588, 3235, 4529, 5176, 6470, 9058, 12940, 18116, 22645, 25880, 31703, 36232, 45290, 63406, 90580, 126812, 158515, 181160, 219467, 253624, 317030, 438934, 634060, 877868, 1097335, 1268120, 1536269, 1755736, 2194670, 3072538, 4389340, 6145076, 7681345, 8778680, 10753883, 12290152, 15362690, 21507766, 30725380, 43015532, 53769415, 61450760, 86031064, 107538830, 141995149, 215077660, 283990298, 430155320, 567980596, 709975745, 993966043, 1135961192, 1419951490, 1987932086, 2839902980, 3975864172, 4969830215, 5679805960, 6957762301, 7951728344, 9939660430, 13915524602, 19879320860, 27831049204, 34788811505, 39758641720, 55662098408, 69577623010, 139155246020, 278310492040]

約数ペア:

[(1, 278310492040), (2, 139155246020), (4, 69577623010), (5, 55662098408), (7, 39758641720), (8, 34788811505), (10, 27831049204), (14, 19879320860), (20, 13915524602), (28, 9939660430), (35, 7951728344), (40, 6957762301), (49, 5679805960), (56, 4969830215), (70, 3975864172), (98, 2839902980), (140, 1987932086), (196, 1419951490), (245, 1135961192), (280, 993966043), (392, 709975745), (490, 567980596), (647, 430155320), (980, 283990298), (1294, 215077660), (1960, 141995149), (2588, 107538830), (3235, 86031064), (4529, 61450760), (5176, 53769415), (6470, 43015532), (9058, 30725380), (12940, 21507766), (18116, 15362690), (22645, 12290152), (25880, 10753883), (31703, 8778680), (36232, 7681345), (45290, 6145076), (63406, 4389340), (90580, 3072538), (126812, 2194670), (158515, 1755736), (181160, 1536269), (219467, 1268120), (253624, 1097335), (317030, 877868), (438934, 634060)]