81620400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{4001}}^1$

素因数の和:4039

約数の個数: 120

約数和(自身を含む): 276906384

約数和(自身を除く): 195285984

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 25, 30, 34, 40, 48, 50, 51, 60, 68, 75, 80, 85, 100, 102, 120, 136, 150, 170, 200, 204, 240, 255, 272, 300, 340, 400, 408, 425, 510, 600, 680, 816, 850, 1020, 1200, 1275, 1360, 1700, 2040, 2550, 3400, 4001, 4080, 5100, 6800, 8002, 10200, 12003, 16004, 20005, 20400, 24006, 32008, 40010, 48012, 60015, 64016, 68017, 80020, 96024, 100025, 120030, 136034, 160040, 192048, 200050, 204051, 240060, 272068, 300075, 320080, 340085, 400100, 408102, 480120, 544136, 600150, 680170, 800200, 816204, 960240, 1020255, 1088272, 1200300, 1360340, 1600400, 1632408, 1700425, 2040510, 2400600, 2720680, 3264816, 3400850, 4081020, 4801200, 5101275, 5441360, 6801700, 8162040, 10202550, 13603400, 16324080, 20405100, 27206800, 40810200, 81620400]

約数ペア:

[(1, 81620400), (2, 40810200), (3, 27206800), (4, 20405100), (5, 16324080), (6, 13603400), (8, 10202550), (10, 8162040), (12, 6801700), (15, 5441360), (16, 5101275), (17, 4801200), (20, 4081020), (24, 3400850), (25, 3264816), (30, 2720680), (34, 2400600), (40, 2040510), (48, 1700425), (50, 1632408), (51, 1600400), (60, 1360340), (68, 1200300), (75, 1088272), (80, 1020255), (85, 960240), (100, 816204), (102, 800200), (120, 680170), (136, 600150), (150, 544136), (170, 480120), (200, 408102), (204, 400100), (240, 340085), (255, 320080), (272, 300075), (300, 272068), (340, 240060), (400, 204051), (408, 200050), (425, 192048), (510, 160040), (600, 136034), (680, 120030), (816, 100025), (850, 96024), (1020, 80020), (1200, 68017), (1275, 64016), (1360, 60015), (1700, 48012), (2040, 40010), (2550, 32008), (3400, 24006), (4001, 20400), (4080, 20005), (5100, 16004), (6800, 12003), (8002, 10200)]