28430720

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1433}}^1$

素因数の和:1483

約数の個数: 64

約数和(自身を含む): 70208640

約数和(自身を除く): 41777920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1433, 1984, 2480, 2866, 3968, 4960, 5732, 7165, 9920, 11464, 14330, 19840, 22928, 28660, 44423, 45856, 57320, 88846, 91712, 114640, 177692, 183424, 222115, 229280, 355384, 444230, 458560, 710768, 888460, 917120, 1421536, 1776920, 2843072, 3553840, 5686144, 7107680, 14215360, 28430720]

約数ペア:

[(1, 28430720), (2, 14215360), (4, 7107680), (5, 5686144), (8, 3553840), (10, 2843072), (16, 1776920), (20, 1421536), (31, 917120), (32, 888460), (40, 710768), (62, 458560), (64, 444230), (80, 355384), (124, 229280), (128, 222115), (155, 183424), (160, 177692), (248, 114640), (310, 91712), (320, 88846), (496, 57320), (620, 45856), (640, 44423), (992, 28660), (1240, 22928), (1433, 19840), (1984, 14330), (2480, 11464), (2866, 9920), (3968, 7165), (4960, 5732)]