1917860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 4979520

約数和(自身を除く): 3061660

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 103, 133, 140, 190, 196, 206, 245, 266, 380, 412, 490, 515, 532, 665, 721, 931, 980, 1030, 1330, 1442, 1862, 1957, 2060, 2660, 2884, 3605, 3724, 3914, 4655, 5047, 7210, 7828, 9310, 9785, 10094, 13699, 14420, 18620, 19570, 20188, 25235, 27398, 39140, 50470, 54796, 68495, 95893, 100940, 136990, 191786, 273980, 383572, 479465, 958930, 1917860]

約数ペア:

[(1, 1917860), (2, 958930), (4, 479465), (5, 383572), (7, 273980), (10, 191786), (14, 136990), (19, 100940), (20, 95893), (28, 68495), (35, 54796), (38, 50470), (49, 39140), (70, 27398), (76, 25235), (95, 20188), (98, 19570), (103, 18620), (133, 14420), (140, 13699), (190, 10094), (196, 9785), (206, 9310), (245, 7828), (266, 7210), (380, 5047), (412, 4655), (490, 3914), (515, 3724), (532, 3605), (665, 2884), (721, 2660), (931, 2060), (980, 1957), (1030, 1862), (1330, 1442)]