20404500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:306

約数の個数: 96

約数和(自身を含む): 60662784

約数和(自身を除く): 40258284

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 61, 75, 100, 122, 125, 150, 183, 223, 244, 250, 300, 305, 366, 375, 446, 500, 610, 669, 732, 750, 892, 915, 1115, 1220, 1338, 1500, 1525, 1830, 2230, 2676, 3050, 3345, 3660, 4460, 4575, 5575, 6100, 6690, 7625, 9150, 11150, 13380, 13603, 15250, 16725, 18300, 22300, 22875, 27206, 27875, 30500, 33450, 40809, 45750, 54412, 55750, 66900, 68015, 81618, 83625, 91500, 111500, 136030, 163236, 167250, 204045, 272060, 334500, 340075, 408090, 680150, 816180, 1020225, 1360300, 1700375, 2040450, 3400750, 4080900, 5101125, 6801500, 10202250, 20404500]

約数ペア:

[(1, 20404500), (2, 10202250), (3, 6801500), (4, 5101125), (5, 4080900), (6, 3400750), (10, 2040450), (12, 1700375), (15, 1360300), (20, 1020225), (25, 816180), (30, 680150), (50, 408090), (60, 340075), (61, 334500), (75, 272060), (100, 204045), (122, 167250), (125, 163236), (150, 136030), (183, 111500), (223, 91500), (244, 83625), (250, 81618), (300, 68015), (305, 66900), (366, 55750), (375, 54412), (446, 45750), (500, 40809), (610, 33450), (669, 30500), (732, 27875), (750, 27206), (892, 22875), (915, 22300), (1115, 18300), (1220, 16725), (1338, 15250), (1500, 13603), (1525, 13380), (1830, 11150), (2230, 9150), (2676, 7625), (3050, 6690), (3345, 6100), (3660, 5575), (4460, 4575)]