4651780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 11289600

約数和(自身を除く): 6637820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 223, 298, 446, 596, 745, 892, 1043, 1115, 1490, 1561, 2086, 2230, 2980, 3122, 4172, 4460, 5215, 6244, 7805, 10430, 15610, 20860, 31220, 33227, 66454, 132908, 166135, 232589, 332270, 465178, 664540, 930356, 1162945, 2325890, 4651780]

約数ペア:

[(1, 4651780), (2, 2325890), (4, 1162945), (5, 930356), (7, 664540), (10, 465178), (14, 332270), (20, 232589), (28, 166135), (35, 132908), (70, 66454), (140, 33227), (149, 31220), (223, 20860), (298, 15610), (446, 10430), (596, 7805), (745, 6244), (892, 5215), (1043, 4460), (1115, 4172), (1490, 3122), (1561, 2980), (2086, 2230)]