156807920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1193}}^1$

素因数の和:1290

約数の個数: 80

約数和(自身を含む): 383761152

約数和(自身を除く): 226953232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 53, 62, 80, 106, 124, 155, 212, 248, 265, 310, 424, 496, 530, 620, 848, 1060, 1193, 1240, 1643, 2120, 2386, 2480, 3286, 4240, 4772, 5965, 6572, 8215, 9544, 11930, 13144, 16430, 19088, 23860, 26288, 32860, 36983, 47720, 63229, 65720, 73966, 95440, 126458, 131440, 147932, 184915, 252916, 295864, 316145, 369830, 505832, 591728, 632290, 739660, 1011664, 1264580, 1479320, 1960099, 2529160, 2958640, 3920198, 5058320, 7840396, 9800495, 15680792, 19600990, 31361584, 39201980, 78403960, 156807920]

約数ペア:

[(1, 156807920), (2, 78403960), (4, 39201980), (5, 31361584), (8, 19600990), (10, 15680792), (16, 9800495), (20, 7840396), (31, 5058320), (40, 3920198), (53, 2958640), (62, 2529160), (80, 1960099), (106, 1479320), (124, 1264580), (155, 1011664), (212, 739660), (248, 632290), (265, 591728), (310, 505832), (424, 369830), (496, 316145), (530, 295864), (620, 252916), (848, 184915), (1060, 147932), (1193, 131440), (1240, 126458), (1643, 95440), (2120, 73966), (2386, 65720), (2480, 63229), (3286, 47720), (4240, 36983), (4772, 32860), (5965, 26288), (6572, 23860), (8215, 19088), (9544, 16430), (11930, 13144)]