180857720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{929}}^1$

素因数の和:1128

約数の個数: 64

約数和(自身を含む): 423187200

約数和(自身を除く): 242329480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 157, 248, 310, 314, 620, 628, 785, 929, 1240, 1256, 1570, 1858, 3140, 3716, 4645, 4867, 6280, 7432, 9290, 9734, 18580, 19468, 24335, 28799, 37160, 38936, 48670, 57598, 97340, 115196, 143995, 145853, 194680, 230392, 287990, 291706, 575980, 583412, 729265, 1151960, 1166824, 1458530, 2917060, 4521443, 5834120, 9042886, 18085772, 22607215, 36171544, 45214430, 90428860, 180857720]

約数ペア:

[(1, 180857720), (2, 90428860), (4, 45214430), (5, 36171544), (8, 22607215), (10, 18085772), (20, 9042886), (31, 5834120), (40, 4521443), (62, 2917060), (124, 1458530), (155, 1166824), (157, 1151960), (248, 729265), (310, 583412), (314, 575980), (620, 291706), (628, 287990), (785, 230392), (929, 194680), (1240, 145853), (1256, 143995), (1570, 115196), (1858, 97340), (3140, 57598), (3716, 48670), (4645, 38936), (4867, 37160), (6280, 28799), (7432, 24335), (9290, 19468), (9734, 18580)]