81449040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19963}}^1$

素因数の和:19996

約数の個数: 80

約数和(自身を含む): 267357888

約数和(自身を除く): 185908848

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 19963, 39926, 59889, 79852, 99815, 119778, 159704, 199630, 239556, 299445, 319408, 339371, 399260, 479112, 598890, 678742, 798520, 958224, 1018113, 1197780, 1357484, 1597040, 1696855, 2036226, 2395560, 2714968, 3393710, 4072452, 4791120, 5090565, 5429936, 6787420, 8144904, 10181130, 13574840, 16289808, 20362260, 27149680, 40724520, 81449040]

約数ペア:

[(1, 81449040), (2, 40724520), (3, 27149680), (4, 20362260), (5, 16289808), (6, 13574840), (8, 10181130), (10, 8144904), (12, 6787420), (15, 5429936), (16, 5090565), (17, 4791120), (20, 4072452), (24, 3393710), (30, 2714968), (34, 2395560), (40, 2036226), (48, 1696855), (51, 1597040), (60, 1357484), (68, 1197780), (80, 1018113), (85, 958224), (102, 798520), (120, 678742), (136, 598890), (170, 479112), (204, 399260), (240, 339371), (255, 319408), (272, 299445), (340, 239556), (408, 199630), (510, 159704), (680, 119778), (816, 99815), (1020, 79852), (1360, 59889), (2040, 39926), (4080, 19963)]