28640160

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19889}}^1$

素因数の和:19910

約数の個数: 72

約数和(自身を含む): 97739460

約数和(自身を除く): 69099300

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 19889, 39778, 59667, 79556, 99445, 119334, 159112, 179001, 198890, 238668, 298335, 318224, 358002, 397780, 477336, 596670, 636448, 716004, 795560, 895005, 954672, 1193340, 1432008, 1591120, 1790010, 1909344, 2386680, 2864016, 3182240, 3580020, 4773360, 5728032, 7160040, 9546720, 14320080, 28640160]

約数ペア:

[(1, 28640160), (2, 14320080), (3, 9546720), (4, 7160040), (5, 5728032), (6, 4773360), (8, 3580020), (9, 3182240), (10, 2864016), (12, 2386680), (15, 1909344), (16, 1790010), (18, 1591120), (20, 1432008), (24, 1193340), (30, 954672), (32, 895005), (36, 795560), (40, 716004), (45, 636448), (48, 596670), (60, 477336), (72, 397780), (80, 358002), (90, 318224), (96, 298335), (120, 238668), (144, 198890), (160, 179001), (180, 159112), (240, 119334), (288, 99445), (360, 79556), (480, 59667), (720, 39778), (1440, 19889)]