19617280

素因数分解:

$2^9\times 5^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:199

約数の個数: 80

約数和(自身を含む): 48121920

約数和(自身を除く): 28504640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 97, 128, 158, 160, 194, 256, 316, 320, 388, 395, 485, 512, 632, 640, 776, 790, 970, 1264, 1280, 1552, 1580, 1940, 2528, 2560, 3104, 3160, 3880, 5056, 6208, 6320, 7663, 7760, 10112, 12416, 12640, 15326, 15520, 20224, 24832, 25280, 30652, 31040, 38315, 40448, 49664, 50560, 61304, 62080, 76630, 101120, 122608, 124160, 153260, 202240, 245216, 248320, 306520, 490432, 613040, 980864, 1226080, 1961728, 2452160, 3923456, 4904320, 9808640, 19617280]

約数ペア:

[(1, 19617280), (2, 9808640), (4, 4904320), (5, 3923456), (8, 2452160), (10, 1961728), (16, 1226080), (20, 980864), (32, 613040), (40, 490432), (64, 306520), (79, 248320), (80, 245216), (97, 202240), (128, 153260), (158, 124160), (160, 122608), (194, 101120), (256, 76630), (316, 62080), (320, 61304), (388, 50560), (395, 49664), (485, 40448), (512, 38315), (632, 31040), (640, 30652), (776, 25280), (790, 24832), (970, 20224), (1264, 15520), (1280, 15326), (1552, 12640), (1580, 12416), (1940, 10112), (2528, 7760), (2560, 7663), (3104, 6320), (3160, 6208), (3880, 5056)]