19765600

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{797}}^1$

素因数の和:848

約数の個数: 72

約数和(自身を含む): 49871808

約数和(自身を除く): 30106208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 80, 100, 124, 155, 160, 200, 248, 310, 400, 496, 620, 775, 797, 800, 992, 1240, 1550, 1594, 2480, 3100, 3188, 3985, 4960, 6200, 6376, 7970, 12400, 12752, 15940, 19925, 24707, 24800, 25504, 31880, 39850, 49414, 63760, 79700, 98828, 123535, 127520, 159400, 197656, 247070, 318800, 395312, 494140, 617675, 637600, 790624, 988280, 1235350, 1976560, 2470700, 3953120, 4941400, 9882800, 19765600]

約数ペア:

[(1, 19765600), (2, 9882800), (4, 4941400), (5, 3953120), (8, 2470700), (10, 1976560), (16, 1235350), (20, 988280), (25, 790624), (31, 637600), (32, 617675), (40, 494140), (50, 395312), (62, 318800), (80, 247070), (100, 197656), (124, 159400), (155, 127520), (160, 123535), (200, 98828), (248, 79700), (310, 63760), (400, 49414), (496, 39850), (620, 31880), (775, 25504), (797, 24800), (800, 24707), (992, 19925), (1240, 15940), (1550, 12752), (1594, 12400), (2480, 7970), (3100, 6376), (3188, 6200), (3985, 4960)]