15990100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{431}}^1$

素因数の和:505

約数の個数: 72

約数和(自身を含む): 40497408

約数和(自身を除く): 24507308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 53, 70, 100, 106, 140, 175, 212, 265, 350, 371, 431, 530, 700, 742, 862, 1060, 1325, 1484, 1724, 1855, 2155, 2650, 3017, 3710, 4310, 5300, 6034, 7420, 8620, 9275, 10775, 12068, 15085, 18550, 21550, 22843, 30170, 37100, 43100, 45686, 60340, 75425, 91372, 114215, 150850, 159901, 228430, 301700, 319802, 456860, 571075, 639604, 799505, 1142150, 1599010, 2284300, 3198020, 3997525, 7995050, 15990100]

約数ペア:

[(1, 15990100), (2, 7995050), (4, 3997525), (5, 3198020), (7, 2284300), (10, 1599010), (14, 1142150), (20, 799505), (25, 639604), (28, 571075), (35, 456860), (50, 319802), (53, 301700), (70, 228430), (100, 159901), (106, 150850), (140, 114215), (175, 91372), (212, 75425), (265, 60340), (350, 45686), (371, 43100), (431, 37100), (530, 30170), (700, 22843), (742, 21550), (862, 18550), (1060, 15085), (1325, 12068), (1484, 10775), (1724, 9275), (1855, 8620), (2155, 7420), (2650, 6034), (3017, 5300), (3710, 4310)]