28150020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8231}}^1$

素因数の和:8265

約数の個数: 72

約数和(自身を含む): 89893440

約数和(自身を除く): 61743420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 8231, 16462, 24693, 32924, 41155, 49386, 74079, 82310, 98772, 123465, 148158, 156389, 164620, 246930, 296316, 312778, 370395, 469167, 493860, 625556, 740790, 781945, 938334, 1407501, 1481580, 1563890, 1876668, 2345835, 2815002, 3127780, 4691670, 5630004, 7037505, 9383340, 14075010, 28150020]

約数ペア:

[(1, 28150020), (2, 14075010), (3, 9383340), (4, 7037505), (5, 5630004), (6, 4691670), (9, 3127780), (10, 2815002), (12, 2345835), (15, 1876668), (18, 1563890), (19, 1481580), (20, 1407501), (30, 938334), (36, 781945), (38, 740790), (45, 625556), (57, 493860), (60, 469167), (76, 370395), (90, 312778), (95, 296316), (114, 246930), (171, 164620), (180, 156389), (190, 148158), (228, 123465), (285, 98772), (342, 82310), (380, 74079), (570, 49386), (684, 41155), (855, 32924), (1140, 24693), (1710, 16462), (3420, 8231)]