402426400

素因数分解:

$2^5\times 5^2\times {\mathrm{23}}^1\times {\mathrm{21871}}^1$

素因数の和:21914

約数の個数: 72

約数和(自身を含む): 1025184384

約数和(自身を除く): 622757984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 80, 92, 100, 115, 160, 184, 200, 230, 368, 400, 460, 575, 736, 800, 920, 1150, 1840, 2300, 3680, 4600, 9200, 18400, 21871, 43742, 87484, 109355, 174968, 218710, 349936, 437420, 503033, 546775, 699872, 874840, 1006066, 1093550, 1749680, 2012132, 2187100, 2515165, 3499360, 4024264, 4374200, 5030330, 8048528, 8748400, 10060660, 12575825, 16097056, 17496800, 20121320, 25151650, 40242640, 50303300, 80485280, 100606600, 201213200, 402426400]

約数ペア:

[(1, 402426400), (2, 201213200), (4, 100606600), (5, 80485280), (8, 50303300), (10, 40242640), (16, 25151650), (20, 20121320), (23, 17496800), (25, 16097056), (32, 12575825), (40, 10060660), (46, 8748400), (50, 8048528), (80, 5030330), (92, 4374200), (100, 4024264), (115, 3499360), (160, 2515165), (184, 2187100), (200, 2012132), (230, 1749680), (368, 1093550), (400, 1006066), (460, 874840), (575, 699872), (736, 546775), (800, 503033), (920, 437420), (1150, 349936), (1840, 218710), (2300, 174968), (3680, 109355), (4600, 87484), (9200, 43742), (18400, 21871)]