640604700

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{79087}}^1$

素因数の和:79113

約数の個数: 90

約数和(自身を含む): 2076613616

約数和(自身を除く): 1436008916

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 135, 150, 162, 180, 225, 270, 300, 324, 405, 450, 540, 675, 810, 900, 1350, 1620, 2025, 2700, 4050, 8100, 79087, 158174, 237261, 316348, 395435, 474522, 711783, 790870, 949044, 1186305, 1423566, 1581740, 1977175, 2135349, 2372610, 2847132, 3558915, 3954350, 4270698, 4745220, 5931525, 6406047, 7117830, 7908700, 8541396, 10676745, 11863050, 12812094, 14235660, 17794575, 21353490, 23726100, 25624188, 32030235, 35589150, 42706980, 53383725, 64060470, 71178300, 106767450, 128120940, 160151175, 213534900, 320302350, 640604700]

約数ペア:

[(1, 640604700), (2, 320302350), (3, 213534900), (4, 160151175), (5, 128120940), (6, 106767450), (9, 71178300), (10, 64060470), (12, 53383725), (15, 42706980), (18, 35589150), (20, 32030235), (25, 25624188), (27, 23726100), (30, 21353490), (36, 17794575), (45, 14235660), (50, 12812094), (54, 11863050), (60, 10676745), (75, 8541396), (81, 7908700), (90, 7117830), (100, 6406047), (108, 5931525), (135, 4745220), (150, 4270698), (162, 3954350), (180, 3558915), (225, 2847132), (270, 2372610), (300, 2135349), (324, 1977175), (405, 1581740), (450, 1423566), (540, 1186305), (675, 949044), (810, 790870), (900, 711783), (1350, 474522), (1620, 395435), (2025, 316348), (2700, 237261), (4050, 158174), (8100, 79087)]