15831390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{587}}^1$

素因数の和:657

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 24811170

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 31, 58, 62, 87, 93, 145, 155, 174, 186, 290, 310, 435, 465, 587, 870, 899, 930, 1174, 1761, 1798, 2697, 2935, 3522, 4495, 5394, 5870, 8805, 8990, 13485, 17023, 17610, 18197, 26970, 34046, 36394, 51069, 54591, 85115, 90985, 102138, 109182, 170230, 181970, 255345, 272955, 510690, 527713, 545910, 1055426, 1583139, 2638565, 3166278, 5277130, 7915695, 15831390]

約数ペア:

[(1, 15831390), (2, 7915695), (3, 5277130), (5, 3166278), (6, 2638565), (10, 1583139), (15, 1055426), (29, 545910), (30, 527713), (31, 510690), (58, 272955), (62, 255345), (87, 181970), (93, 170230), (145, 109182), (155, 102138), (174, 90985), (186, 85115), (290, 54591), (310, 51069), (435, 36394), (465, 34046), (587, 26970), (870, 18197), (899, 17610), (930, 17023), (1174, 13485), (1761, 8990), (1798, 8805), (2697, 5870), (2935, 5394), (3522, 4495)]