1789171820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{659}}^1$

素因数の和:879

約数の個数: 96

約数和(自身を含む): 4044902400

約数和(自身を除く): 2255730580

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 151, 155, 290, 302, 310, 580, 604, 620, 659, 755, 899, 1318, 1510, 1798, 2636, 3020, 3295, 3596, 4379, 4495, 4681, 6590, 8758, 8990, 9362, 13180, 17516, 17980, 18724, 19111, 20429, 21895, 23405, 38222, 40858, 43790, 46810, 76444, 81716, 87580, 93620, 95555, 99509, 102145, 135749, 191110, 199018, 204290, 271498, 382220, 398036, 408580, 497545, 542996, 592441, 678745, 995090, 1184882, 1357490, 1990180, 2369764, 2714980, 2885761, 2962205, 3084779, 5771522, 5924410, 6169558, 11543044, 11848820, 12339116, 14428805, 15423895, 28857610, 30847790, 57715220, 61695580, 89458591, 178917182, 357834364, 447292955, 894585910, 1789171820]

約数ペア:

[(1, 1789171820), (2, 894585910), (4, 447292955), (5, 357834364), (10, 178917182), (20, 89458591), (29, 61695580), (31, 57715220), (58, 30847790), (62, 28857610), (116, 15423895), (124, 14428805), (145, 12339116), (151, 11848820), (155, 11543044), (290, 6169558), (302, 5924410), (310, 5771522), (580, 3084779), (604, 2962205), (620, 2885761), (659, 2714980), (755, 2369764), (899, 1990180), (1318, 1357490), (1510, 1184882), (1798, 995090), (2636, 678745), (3020, 592441), (3295, 542996), (3596, 497545), (4379, 408580), (4495, 398036), (4681, 382220), (6590, 271498), (8758, 204290), (8990, 199018), (9362, 191110), (13180, 135749), (17516, 102145), (17980, 99509), (18724, 95555), (19111, 93620), (20429, 87580), (21895, 81716), (23405, 76444), (38222, 46810), (40858, 43790)]