19692680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1327}}^1$

素因数の和:1398

約数の個数: 64

約数和(自身を含む): 51632640

約数和(自身を除く): 31939960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 70, 106, 140, 212, 265, 280, 371, 424, 530, 742, 1060, 1327, 1484, 1855, 2120, 2654, 2968, 3710, 5308, 6635, 7420, 9289, 10616, 13270, 14840, 18578, 26540, 37156, 46445, 53080, 70331, 74312, 92890, 140662, 185780, 281324, 351655, 371560, 492317, 562648, 703310, 984634, 1406620, 1969268, 2461585, 2813240, 3938536, 4923170, 9846340, 19692680]

約数ペア:

[(1, 19692680), (2, 9846340), (4, 4923170), (5, 3938536), (7, 2813240), (8, 2461585), (10, 1969268), (14, 1406620), (20, 984634), (28, 703310), (35, 562648), (40, 492317), (53, 371560), (56, 351655), (70, 281324), (106, 185780), (140, 140662), (212, 92890), (265, 74312), (280, 70331), (371, 53080), (424, 46445), (530, 37156), (742, 26540), (1060, 18578), (1327, 14840), (1484, 13270), (1855, 10616), (2120, 9289), (2654, 7420), (2968, 6635), (3710, 5308)]