21850320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{503}}^1$

素因数の和:700

約数の個数: 80

約数和(自身を含む): 68245632

約数和(自身を除く): 46395312

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 181, 240, 362, 503, 543, 724, 905, 1006, 1086, 1448, 1509, 1810, 2012, 2172, 2515, 2715, 2896, 3018, 3620, 4024, 4344, 5030, 5430, 6036, 7240, 7545, 8048, 8688, 10060, 10860, 12072, 14480, 15090, 20120, 21720, 24144, 30180, 40240, 43440, 60360, 91043, 120720, 182086, 273129, 364172, 455215, 546258, 728344, 910430, 1092516, 1365645, 1456688, 1820860, 2185032, 2731290, 3641720, 4370064, 5462580, 7283440, 10925160, 21850320]

約数ペア:

[(1, 21850320), (2, 10925160), (3, 7283440), (4, 5462580), (5, 4370064), (6, 3641720), (8, 2731290), (10, 2185032), (12, 1820860), (15, 1456688), (16, 1365645), (20, 1092516), (24, 910430), (30, 728344), (40, 546258), (48, 455215), (60, 364172), (80, 273129), (120, 182086), (181, 120720), (240, 91043), (362, 60360), (503, 43440), (543, 40240), (724, 30180), (905, 24144), (1006, 21720), (1086, 20120), (1448, 15090), (1509, 14480), (1810, 12072), (2012, 10860), (2172, 10060), (2515, 8688), (2715, 8048), (2896, 7545), (3018, 7240), (3620, 6036), (4024, 5430), (4344, 5030)]