19157660

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{383}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 41997312

約数和(自身を除く): 22839652

約数列:

[1, 2, 4, 5, 10, 20, 41, 61, 82, 122, 164, 205, 244, 305, 383, 410, 610, 766, 820, 1220, 1532, 1915, 2501, 3830, 5002, 7660, 10004, 12505, 15703, 23363, 25010, 31406, 46726, 50020, 62812, 78515, 93452, 116815, 157030, 233630, 314060, 467260, 957883, 1915766, 3831532, 4789415, 9578830, 19157660]

約数ペア:

[(1, 19157660), (2, 9578830), (4, 4789415), (5, 3831532), (10, 1915766), (20, 957883), (41, 467260), (61, 314060), (82, 233630), (122, 157030), (164, 116815), (205, 93452), (244, 78515), (305, 62812), (383, 50020), (410, 46726), (610, 31406), (766, 25010), (820, 23363), (1220, 15703), (1532, 12505), (1915, 10004), (2501, 7660), (3830, 5002)]