19906670340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{495931}}^1$

素因数の和:496169

約数の個数: 72

約数和(自身を含む): 60654467328

約数和(自身を除く): 40747796988

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 223, 446, 669, 892, 1115, 1338, 2007, 2230, 2676, 3345, 4014, 4460, 6690, 8028, 10035, 13380, 20070, 40140, 495931, 991862, 1487793, 1983724, 2479655, 2975586, 4463379, 4959310, 5951172, 7438965, 8926758, 9918620, 14877930, 17853516, 22316895, 29755860, 44633790, 89267580, 110592613, 221185226, 331777839, 442370452, 552963065, 663555678, 995333517, 1105926130, 1327111356, 1658889195, 1990667034, 2211852260, 3317778390, 3981334068, 4976667585, 6635556780, 9953335170, 19906670340]

約数ペア:

[(1, 19906670340), (2, 9953335170), (3, 6635556780), (4, 4976667585), (5, 3981334068), (6, 3317778390), (9, 2211852260), (10, 1990667034), (12, 1658889195), (15, 1327111356), (18, 1105926130), (20, 995333517), (30, 663555678), (36, 552963065), (45, 442370452), (60, 331777839), (90, 221185226), (180, 110592613), (223, 89267580), (446, 44633790), (669, 29755860), (892, 22316895), (1115, 17853516), (1338, 14877930), (2007, 9918620), (2230, 8926758), (2676, 7438965), (3345, 5951172), (4014, 4959310), (4460, 4463379), (6690, 2975586), (8028, 2479655), (10035, 1983724), (13380, 1487793), (20070, 991862), (40140, 495931)]