19922240

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4789}}^1$

素因数の和:4819

約数の個数: 56

約数和(自身を含む): 51099720

約数和(自身を除く): 31177480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 4789, 9578, 19156, 23945, 38312, 47890, 62257, 76624, 95780, 124514, 153248, 191560, 249028, 306496, 311285, 383120, 498056, 622570, 766240, 996112, 1245140, 1532480, 1992224, 2490280, 3984448, 4980560, 9961120, 19922240]

約数ペア:

[(1, 19922240), (2, 9961120), (4, 4980560), (5, 3984448), (8, 2490280), (10, 1992224), (13, 1532480), (16, 1245140), (20, 996112), (26, 766240), (32, 622570), (40, 498056), (52, 383120), (64, 311285), (65, 306496), (80, 249028), (104, 191560), (130, 153248), (160, 124514), (208, 95780), (260, 76624), (320, 62257), (416, 47890), (520, 38312), (832, 23945), (1040, 19156), (2080, 9578), (4160, 4789)]