72747520

素因数分解:

$2^9\times 5^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:361

約数の個数: 80

約数和(自身を含む): 176504328

約数和(自身を除く): 103756808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 181, 256, 314, 320, 362, 512, 628, 640, 724, 785, 905, 1256, 1280, 1448, 1570, 1810, 2512, 2560, 2896, 3140, 3620, 5024, 5792, 6280, 7240, 10048, 11584, 12560, 14480, 20096, 23168, 25120, 28417, 28960, 40192, 46336, 50240, 56834, 57920, 80384, 92672, 100480, 113668, 115840, 142085, 200960, 227336, 231680, 284170, 401920, 454672, 463360, 568340, 909344, 1136680, 1818688, 2273360, 3637376, 4546720, 7274752, 9093440, 14549504, 18186880, 36373760, 72747520]

約数ペア:

[(1, 72747520), (2, 36373760), (4, 18186880), (5, 14549504), (8, 9093440), (10, 7274752), (16, 4546720), (20, 3637376), (32, 2273360), (40, 1818688), (64, 1136680), (80, 909344), (128, 568340), (157, 463360), (160, 454672), (181, 401920), (256, 284170), (314, 231680), (320, 227336), (362, 200960), (512, 142085), (628, 115840), (640, 113668), (724, 100480), (785, 92672), (905, 80384), (1256, 57920), (1280, 56834), (1448, 50240), (1570, 46336), (1810, 40192), (2512, 28960), (2560, 28417), (2896, 25120), (3140, 23168), (3620, 20096), (5024, 14480), (5792, 12560), (6280, 11584), (7240, 10048)]