201061720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1\times {\mathrm{647}}^1$

素因数の和:1132

約数の個数: 64

約数和(自身を含む): 480790080

約数和(自身を除く): 279728360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 457, 647, 680, 914, 1294, 1828, 2285, 2588, 3235, 3656, 4570, 5176, 6470, 7769, 9140, 10999, 12940, 15538, 18280, 21998, 25880, 31076, 38845, 43996, 54995, 62152, 77690, 87992, 109990, 155380, 219980, 295679, 310760, 439960, 591358, 1182716, 1478395, 2365432, 2956790, 5026543, 5913580, 10053086, 11827160, 20106172, 25132715, 40212344, 50265430, 100530860, 201061720]

約数ペア:

[(1, 201061720), (2, 100530860), (4, 50265430), (5, 40212344), (8, 25132715), (10, 20106172), (17, 11827160), (20, 10053086), (34, 5913580), (40, 5026543), (68, 2956790), (85, 2365432), (136, 1478395), (170, 1182716), (340, 591358), (457, 439960), (647, 310760), (680, 295679), (914, 219980), (1294, 155380), (1828, 109990), (2285, 87992), (2588, 77690), (3235, 62152), (3656, 54995), (4570, 43996), (5176, 38845), (6470, 31076), (7769, 25880), (9140, 21998), (10999, 18280), (12940, 15538)]