19458080

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3923}}^1$

素因数の和:3969

約数の個数: 48

約数和(自身を含む): 47464704

約数和(自身を除く): 28006624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 3923, 4960, 7846, 15692, 19615, 31384, 39230, 62768, 78460, 121613, 125536, 156920, 243226, 313840, 486452, 608065, 627680, 972904, 1216130, 1945808, 2432260, 3891616, 4864520, 9729040, 19458080]

約数ペア:

[(1, 19458080), (2, 9729040), (4, 4864520), (5, 3891616), (8, 2432260), (10, 1945808), (16, 1216130), (20, 972904), (31, 627680), (32, 608065), (40, 486452), (62, 313840), (80, 243226), (124, 156920), (155, 125536), (160, 121613), (248, 78460), (310, 62768), (496, 39230), (620, 31384), (992, 19615), (1240, 15692), (2480, 7846), (3923, 4960)]