28763020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:235

約数の個数: 96

約数和(自身を含む): 72394560

約数和(自身を除く): 43631540

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 89, 110, 113, 130, 143, 178, 220, 226, 260, 286, 356, 445, 452, 565, 572, 715, 890, 979, 1130, 1157, 1243, 1430, 1469, 1780, 1958, 2260, 2314, 2486, 2860, 2938, 3916, 4628, 4895, 4972, 5785, 5876, 6215, 7345, 9790, 10057, 11570, 12430, 12727, 14690, 16159, 19580, 20114, 23140, 24860, 25454, 29380, 32318, 40228, 50285, 50908, 63635, 64636, 80795, 100570, 110627, 127270, 130741, 161590, 201140, 221254, 254540, 261482, 323180, 442508, 522964, 553135, 653705, 1106270, 1307410, 1438151, 2212540, 2614820, 2876302, 5752604, 7190755, 14381510, 28763020]

約数ペア:

[(1, 28763020), (2, 14381510), (4, 7190755), (5, 5752604), (10, 2876302), (11, 2614820), (13, 2212540), (20, 1438151), (22, 1307410), (26, 1106270), (44, 653705), (52, 553135), (55, 522964), (65, 442508), (89, 323180), (110, 261482), (113, 254540), (130, 221254), (143, 201140), (178, 161590), (220, 130741), (226, 127270), (260, 110627), (286, 100570), (356, 80795), (445, 64636), (452, 63635), (565, 50908), (572, 50285), (715, 40228), (890, 32318), (979, 29380), (1130, 25454), (1157, 24860), (1243, 23140), (1430, 20114), (1469, 19580), (1780, 16159), (1958, 14690), (2260, 12727), (2314, 12430), (2486, 11570), (2860, 10057), (2938, 9790), (3916, 7345), (4628, 6215), (4895, 5876), (4972, 5785)]