20245640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1567}}^1$

素因数の和:1614

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 30557560

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 380, 646, 680, 760, 1292, 1567, 1615, 2584, 3134, 3230, 6268, 6460, 7835, 12536, 12920, 15670, 26639, 29773, 31340, 53278, 59546, 62680, 106556, 119092, 133195, 148865, 213112, 238184, 266390, 297730, 506141, 532780, 595460, 1012282, 1065560, 1190920, 2024564, 2530705, 4049128, 5061410, 10122820, 20245640]

約数ペア:

[(1, 20245640), (2, 10122820), (4, 5061410), (5, 4049128), (8, 2530705), (10, 2024564), (17, 1190920), (19, 1065560), (20, 1012282), (34, 595460), (38, 532780), (40, 506141), (68, 297730), (76, 266390), (85, 238184), (95, 213112), (136, 148865), (152, 133195), (170, 119092), (190, 106556), (323, 62680), (340, 59546), (380, 53278), (646, 31340), (680, 29773), (760, 26639), (1292, 15670), (1567, 12920), (1615, 12536), (2584, 7835), (3134, 6460), (3230, 6268)]