40720925

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 61519872

約数和(自身を除く): 20798947

約数列:

[1, 5, 7, 23, 25, 35, 67, 115, 151, 161, 175, 335, 469, 575, 755, 805, 1057, 1541, 1675, 2345, 3473, 3775, 4025, 5285, 7705, 10117, 10787, 11725, 17365, 24311, 26425, 38525, 50585, 53935, 70819, 86825, 121555, 232691, 252925, 269675, 354095, 607775, 1163455, 1628837, 1770475, 5817275, 8144185, 40720925]

約数ペア:

[(1, 40720925), (5, 8144185), (7, 5817275), (23, 1770475), (25, 1628837), (35, 1163455), (67, 607775), (115, 354095), (151, 269675), (161, 252925), (175, 232691), (335, 121555), (469, 86825), (575, 70819), (755, 53935), (805, 50585), (1057, 38525), (1541, 26425), (1675, 24311), (2345, 17365), (3473, 11725), (3775, 10787), (4025, 10117), (5285, 7705)]