19456220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4483}}^1$

素因数の和:4530

約数の個数: 48

約数和(自身を含む): 48211968

約数和(自身を除く): 28755748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 4483, 8966, 17932, 22415, 31381, 44830, 62762, 89660, 125524, 138973, 156905, 277946, 313810, 555892, 627620, 694865, 972811, 1389730, 1945622, 2779460, 3891244, 4864055, 9728110, 19456220]

約数ペア:

[(1, 19456220), (2, 9728110), (4, 4864055), (5, 3891244), (7, 2779460), (10, 1945622), (14, 1389730), (20, 972811), (28, 694865), (31, 627620), (35, 555892), (62, 313810), (70, 277946), (124, 156905), (140, 138973), (155, 125524), (217, 89660), (310, 62762), (434, 44830), (620, 31381), (868, 22415), (1085, 17932), (2170, 8966), (4340, 4483)]