72221440

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3319}}^1$

素因数の和:3357

約数の個数: 72

約数和(自身を含む): 183224160

約数和(自身を除く): 111002720

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, 544, 640, 680, 1088, 1280, 1360, 2176, 2720, 3319, 4352, 5440, 6638, 10880, 13276, 16595, 21760, 26552, 33190, 53104, 56423, 66380, 106208, 112846, 132760, 212416, 225692, 265520, 282115, 424832, 451384, 531040, 564230, 849664, 902768, 1062080, 1128460, 1805536, 2124160, 2256920, 3611072, 4248320, 4513840, 7222144, 9027680, 14444288, 18055360, 36110720, 72221440]

約数ペア:

[(1, 72221440), (2, 36110720), (4, 18055360), (5, 14444288), (8, 9027680), (10, 7222144), (16, 4513840), (17, 4248320), (20, 3611072), (32, 2256920), (34, 2124160), (40, 1805536), (64, 1128460), (68, 1062080), (80, 902768), (85, 849664), (128, 564230), (136, 531040), (160, 451384), (170, 424832), (256, 282115), (272, 265520), (320, 225692), (340, 212416), (544, 132760), (640, 112846), (680, 106208), (1088, 66380), (1280, 56423), (1360, 53104), (2176, 33190), (2720, 26552), (3319, 21760), (4352, 16595), (5440, 13276), (6638, 10880)]