31977855

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:190

約数の個数: 128

約数和(自身を含む): 74188800

約数和(自身を除く): 42210945

約数列:

[1, 3, 5, 7, 9, 13, 15, 19, 21, 27, 35, 39, 45, 57, 63, 65, 91, 95, 105, 117, 133, 135, 137, 171, 189, 195, 247, 273, 285, 315, 351, 399, 411, 455, 513, 585, 665, 685, 741, 819, 855, 945, 959, 1197, 1233, 1235, 1365, 1729, 1755, 1781, 1995, 2055, 2223, 2457, 2565, 2603, 2877, 3591, 3699, 3705, 4095, 4795, 5187, 5343, 5985, 6165, 6669, 7809, 8631, 8645, 8905, 11115, 12285, 12467, 13015, 14385, 15561, 16029, 17955, 18221, 18495, 23427, 25893, 25935, 26715, 33345, 33839, 37401, 39045, 43155, 46683, 48087, 54663, 62335, 70281, 77805, 80145, 91105, 101517, 112203, 117135, 129465, 163989, 169195, 187005, 233415, 236873, 240435, 273315, 304551, 336609, 351405, 491967, 507585, 561015, 710619, 819945, 913653, 1184365, 1522755, 1683045, 2131857, 2459835, 3553095, 4568265, 6395571, 10659285, 31977855]

約数ペア:

[(1, 31977855), (3, 10659285), (5, 6395571), (7, 4568265), (9, 3553095), (13, 2459835), (15, 2131857), (19, 1683045), (21, 1522755), (27, 1184365), (35, 913653), (39, 819945), (45, 710619), (57, 561015), (63, 507585), (65, 491967), (91, 351405), (95, 336609), (105, 304551), (117, 273315), (133, 240435), (135, 236873), (137, 233415), (171, 187005), (189, 169195), (195, 163989), (247, 129465), (273, 117135), (285, 112203), (315, 101517), (351, 91105), (399, 80145), (411, 77805), (455, 70281), (513, 62335), (585, 54663), (665, 48087), (685, 46683), (741, 43155), (819, 39045), (855, 37401), (945, 33839), (959, 33345), (1197, 26715), (1233, 25935), (1235, 25893), (1365, 23427), (1729, 18495), (1755, 18221), (1781, 17955), (1995, 16029), (2055, 15561), (2223, 14385), (2457, 13015), (2565, 12467), (2603, 12285), (2877, 11115), (3591, 8905), (3699, 8645), (3705, 8631), (4095, 7809), (4795, 6669), (5187, 6165), (5343, 5985)]