180545980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{557}}^1\times {\mathrm{853}}^1$

素因数の和:1438

約数の個数: 48

約数和(自身を含む): 400286880

約数和(自身を除く): 219740900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 557, 853, 1114, 1706, 2228, 2785, 3412, 4265, 5570, 8530, 10583, 11140, 16207, 17060, 21166, 32414, 42332, 52915, 64828, 81035, 105830, 162070, 211660, 324140, 475121, 950242, 1900484, 2375605, 4751210, 9027299, 9502420, 18054598, 36109196, 45136495, 90272990, 180545980]

約数ペア:

[(1, 180545980), (2, 90272990), (4, 45136495), (5, 36109196), (10, 18054598), (19, 9502420), (20, 9027299), (38, 4751210), (76, 2375605), (95, 1900484), (190, 950242), (380, 475121), (557, 324140), (853, 211660), (1114, 162070), (1706, 105830), (2228, 81035), (2785, 64828), (3412, 52915), (4265, 42332), (5570, 32414), (8530, 21166), (10583, 17060), (11140, 16207)]