81512960

素因数分解:

$2^9\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1873}}^1$

素因数の和:1913

約数の個数: 80

約数和(自身を含む): 207047016

約数和(自身を除く): 125534056

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 512, 544, 640, 680, 1088, 1280, 1360, 1873, 2176, 2560, 2720, 3746, 4352, 5440, 7492, 8704, 9365, 10880, 14984, 18730, 21760, 29968, 31841, 37460, 43520, 59936, 63682, 74920, 119872, 127364, 149840, 159205, 239744, 254728, 299680, 318410, 479488, 509456, 599360, 636820, 958976, 1018912, 1198720, 1273640, 2037824, 2397440, 2547280, 4075648, 4794880, 5094560, 8151296, 10189120, 16302592, 20378240, 40756480, 81512960]

約数ペア:

[(1, 81512960), (2, 40756480), (4, 20378240), (5, 16302592), (8, 10189120), (10, 8151296), (16, 5094560), (17, 4794880), (20, 4075648), (32, 2547280), (34, 2397440), (40, 2037824), (64, 1273640), (68, 1198720), (80, 1018912), (85, 958976), (128, 636820), (136, 599360), (160, 509456), (170, 479488), (256, 318410), (272, 299680), (320, 254728), (340, 239744), (512, 159205), (544, 149840), (640, 127364), (680, 119872), (1088, 74920), (1280, 63682), (1360, 59936), (1873, 43520), (2176, 37460), (2560, 31841), (2720, 29968), (3746, 21760), (4352, 18730), (5440, 14984), (7492, 10880), (8704, 9365)]