212527540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{197}}^1$

素因数の和:409

約数の個数: 96

約数和(自身を含む): 502951680

約数和(自身を除く): 290424140

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 167, 170, 190, 197, 323, 334, 340, 380, 394, 646, 668, 788, 835, 985, 1292, 1615, 1670, 1970, 2839, 3173, 3230, 3340, 3349, 3743, 3940, 5678, 6346, 6460, 6698, 7486, 11356, 12692, 13396, 14195, 14972, 15865, 16745, 18715, 28390, 31730, 32899, 33490, 37430, 53941, 56780, 63460, 63631, 65798, 66980, 74860, 107882, 127262, 131596, 164495, 215764, 254524, 269705, 318155, 328990, 539410, 559283, 625081, 636310, 657980, 1078820, 1118566, 1250162, 1272620, 2237132, 2500324, 2796415, 3125405, 5592830, 6250810, 10626377, 11185660, 12501620, 21252754, 42505508, 53131885, 106263770, 212527540]

約数ペア:

[(1, 212527540), (2, 106263770), (4, 53131885), (5, 42505508), (10, 21252754), (17, 12501620), (19, 11185660), (20, 10626377), (34, 6250810), (38, 5592830), (68, 3125405), (76, 2796415), (85, 2500324), (95, 2237132), (167, 1272620), (170, 1250162), (190, 1118566), (197, 1078820), (323, 657980), (334, 636310), (340, 625081), (380, 559283), (394, 539410), (646, 328990), (668, 318155), (788, 269705), (835, 254524), (985, 215764), (1292, 164495), (1615, 131596), (1670, 127262), (1970, 107882), (2839, 74860), (3173, 66980), (3230, 65798), (3340, 63631), (3349, 63460), (3743, 56780), (3940, 53941), (5678, 37430), (6346, 33490), (6460, 32899), (6698, 31730), (7486, 28390), (11356, 18715), (12692, 16745), (13396, 15865), (14195, 14972)]