991860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 2833152

約数和(自身を除く): 1841292

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 271, 305, 366, 542, 610, 732, 813, 915, 1084, 1220, 1355, 1626, 1830, 2710, 3252, 3660, 4065, 5420, 8130, 16260, 16531, 33062, 49593, 66124, 82655, 99186, 165310, 198372, 247965, 330620, 495930, 991860]

約数ペア:

[(1, 991860), (2, 495930), (3, 330620), (4, 247965), (5, 198372), (6, 165310), (10, 99186), (12, 82655), (15, 66124), (20, 49593), (30, 33062), (60, 16531), (61, 16260), (122, 8130), (183, 5420), (244, 4065), (271, 3660), (305, 3252), (366, 2710), (542, 1830), (610, 1626), (732, 1355), (813, 1220), (915, 1084)]