20183420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:167

約数の個数: 96

約数和(自身を含む): 48988800

約数和(自身を除く): 28805380

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 29, 34, 46, 58, 68, 85, 89, 92, 115, 116, 145, 170, 178, 230, 290, 340, 356, 391, 445, 460, 493, 580, 667, 782, 890, 986, 1334, 1513, 1564, 1780, 1955, 1972, 2047, 2465, 2581, 2668, 3026, 3335, 3910, 4094, 4930, 5162, 6052, 6670, 7565, 7820, 8188, 9860, 10235, 10324, 11339, 12905, 13340, 15130, 20470, 22678, 25810, 30260, 34799, 40940, 43877, 45356, 51620, 56695, 59363, 69598, 87754, 113390, 118726, 139196, 173995, 175508, 219385, 226780, 237452, 296815, 347990, 438770, 593630, 695980, 877540, 1009171, 1187260, 2018342, 4036684, 5045855, 10091710, 20183420]

約数ペア:

[(1, 20183420), (2, 10091710), (4, 5045855), (5, 4036684), (10, 2018342), (17, 1187260), (20, 1009171), (23, 877540), (29, 695980), (34, 593630), (46, 438770), (58, 347990), (68, 296815), (85, 237452), (89, 226780), (92, 219385), (115, 175508), (116, 173995), (145, 139196), (170, 118726), (178, 113390), (230, 87754), (290, 69598), (340, 59363), (356, 56695), (391, 51620), (445, 45356), (460, 43877), (493, 40940), (580, 34799), (667, 30260), (782, 25810), (890, 22678), (986, 20470), (1334, 15130), (1513, 13340), (1564, 12905), (1780, 11339), (1955, 10324), (1972, 10235), (2047, 9860), (2465, 8188), (2581, 7820), (2668, 7565), (3026, 6670), (3335, 6052), (3910, 5162), (4094, 4930)]