19479156920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2789}}^1\times {\mathrm{10271}}^1$

素因数の和:13088

約数の個数: 64

約数和(自身を含む): 46427385600

約数和(自身を除く): 26948228680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 2789, 5578, 10271, 11156, 13945, 20542, 22312, 27890, 41084, 47413, 51355, 55780, 82168, 94826, 102710, 111560, 174607, 189652, 205420, 237065, 349214, 379304, 410840, 474130, 698428, 873035, 948260, 1396856, 1746070, 1896520, 3492140, 6984280, 28645819, 57291638, 114583276, 143229095, 229166552, 286458190, 486978923, 572916380, 973957846, 1145832760, 1947915692, 2434894615, 3895831384, 4869789230, 9739578460, 19479156920]

約数ペア:

[(1, 19479156920), (2, 9739578460), (4, 4869789230), (5, 3895831384), (8, 2434894615), (10, 1947915692), (17, 1145832760), (20, 973957846), (34, 572916380), (40, 486978923), (68, 286458190), (85, 229166552), (136, 143229095), (170, 114583276), (340, 57291638), (680, 28645819), (2789, 6984280), (5578, 3492140), (10271, 1896520), (11156, 1746070), (13945, 1396856), (20542, 948260), (22312, 873035), (27890, 698428), (41084, 474130), (47413, 410840), (51355, 379304), (55780, 349214), (82168, 237065), (94826, 205420), (102710, 189652), (111560, 174607)]