2689960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{739}}^1$

素因数の和:770

約数の個数: 64

約数和(自身を含む): 7459200

約数和(自身を除く): 4769240

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 739, 910, 1478, 1820, 2956, 3640, 3695, 5173, 5912, 7390, 9607, 10346, 14780, 19214, 20692, 25865, 29560, 38428, 41384, 48035, 51730, 67249, 76856, 96070, 103460, 134498, 192140, 206920, 268996, 336245, 384280, 537992, 672490, 1344980, 2689960]

約数ペア:

[(1, 2689960), (2, 1344980), (4, 672490), (5, 537992), (7, 384280), (8, 336245), (10, 268996), (13, 206920), (14, 192140), (20, 134498), (26, 103460), (28, 96070), (35, 76856), (40, 67249), (52, 51730), (56, 48035), (65, 41384), (70, 38428), (91, 29560), (104, 25865), (130, 20692), (140, 19214), (182, 14780), (260, 10346), (280, 9607), (364, 7390), (455, 5912), (520, 5173), (728, 3695), (739, 3640), (910, 2956), (1478, 1820)]