256955300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{331}}^1\times {\mathrm{1109}}^1$

素因数の和:1461

約数の個数: 72

約数和(自身を含む): 639750720

約数和(自身を除く): 382795420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 331, 350, 662, 700, 1109, 1324, 1655, 2218, 2317, 3310, 4436, 4634, 5545, 6620, 7763, 8275, 9268, 11090, 11585, 15526, 16550, 22180, 23170, 27725, 31052, 33100, 38815, 46340, 55450, 57925, 77630, 110900, 115850, 155260, 194075, 231700, 367079, 388150, 734158, 776300, 1468316, 1835395, 2569553, 3670790, 5139106, 7341580, 9176975, 10278212, 12847765, 18353950, 25695530, 36707900, 51391060, 64238825, 128477650, 256955300]

約数ペア:

[(1, 256955300), (2, 128477650), (4, 64238825), (5, 51391060), (7, 36707900), (10, 25695530), (14, 18353950), (20, 12847765), (25, 10278212), (28, 9176975), (35, 7341580), (50, 5139106), (70, 3670790), (100, 2569553), (140, 1835395), (175, 1468316), (331, 776300), (350, 734158), (662, 388150), (700, 367079), (1109, 231700), (1324, 194075), (1655, 155260), (2218, 115850), (2317, 110900), (3310, 77630), (4436, 57925), (4634, 55450), (5545, 46340), (6620, 38815), (7763, 33100), (8275, 31052), (9268, 27725), (11090, 23170), (11585, 22180), (15526, 16550)]