311906270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{421}}^1$

素因数の和:621

約数の個数: 64

約数和(自身を含む): 625302720

約数和(自身を除く): 313396450

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 139, 205, 278, 410, 421, 533, 695, 842, 1066, 1390, 1807, 2105, 2665, 3614, 4210, 5330, 5473, 5699, 9035, 10946, 11398, 17261, 18070, 27365, 28495, 34522, 54730, 56990, 58519, 74087, 86305, 117038, 148174, 172610, 224393, 292595, 370435, 448786, 585190, 740870, 760747, 1121965, 1521494, 2243930, 2399279, 3803735, 4798558, 7607470, 11996395, 23992790, 31190627, 62381254, 155953135, 311906270]

約数ペア:

[(1, 311906270), (2, 155953135), (5, 62381254), (10, 31190627), (13, 23992790), (26, 11996395), (41, 7607470), (65, 4798558), (82, 3803735), (130, 2399279), (139, 2243930), (205, 1521494), (278, 1121965), (410, 760747), (421, 740870), (533, 585190), (695, 448786), (842, 370435), (1066, 292595), (1390, 224393), (1807, 172610), (2105, 148174), (2665, 117038), (3614, 86305), (4210, 74087), (5330, 58519), (5473, 56990), (5699, 54730), (9035, 34522), (10946, 28495), (11398, 27365), (17261, 18070)]