4149980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 9367680

約数和(自身を除く): 5217700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 67, 76, 95, 134, 163, 190, 268, 326, 335, 380, 652, 670, 815, 1273, 1340, 1630, 2546, 3097, 3260, 5092, 6194, 6365, 10921, 12388, 12730, 15485, 21842, 25460, 30970, 43684, 54605, 61940, 109210, 207499, 218420, 414998, 829996, 1037495, 2074990, 4149980]

約数ペア:

[(1, 4149980), (2, 2074990), (4, 1037495), (5, 829996), (10, 414998), (19, 218420), (20, 207499), (38, 109210), (67, 61940), (76, 54605), (95, 43684), (134, 30970), (163, 25460), (190, 21842), (268, 15485), (326, 12730), (335, 12388), (380, 10921), (652, 6365), (670, 6194), (815, 5092), (1273, 3260), (1340, 3097), (1630, 2546)]