397418520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{194813}}^1$

素因数の和:194844

約数の個数: 64

約数和(自身を含む): 1262394720

約数和(自身を除く): 864976200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 194813, 389626, 584439, 779252, 974065, 1168878, 1558504, 1948130, 2337756, 2922195, 3311821, 3896260, 4675512, 5844390, 6623642, 7792520, 9935463, 11688780, 13247284, 16559105, 19870926, 23377560, 26494568, 33118210, 39741852, 49677315, 66236420, 79483704, 99354630, 132472840, 198709260, 397418520]

約数ペア:

[(1, 397418520), (2, 198709260), (3, 132472840), (4, 99354630), (5, 79483704), (6, 66236420), (8, 49677315), (10, 39741852), (12, 33118210), (15, 26494568), (17, 23377560), (20, 19870926), (24, 16559105), (30, 13247284), (34, 11688780), (40, 9935463), (51, 7792520), (60, 6623642), (68, 5844390), (85, 4675512), (102, 3896260), (120, 3311821), (136, 2922195), (170, 2337756), (204, 1948130), (255, 1558504), (340, 1168878), (408, 974065), (510, 779252), (680, 584439), (1020, 389626), (2040, 194813)]