78590720

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4723}}^1$

素因数の和:4757

約数の個数: 72

約数和(自身を含む): 202772976

約数和(自身を除く): 124182256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 4723, 8320, 9446, 16640, 18892, 23615, 37784, 47230, 61399, 75568, 94460, 122798, 151136, 188920, 245596, 302272, 306995, 377840, 491192, 604544, 613990, 755680, 982384, 1209088, 1227980, 1511360, 1964768, 2455960, 3022720, 3929536, 4911920, 6045440, 7859072, 9823840, 15718144, 19647680, 39295360, 78590720]

約数ペア:

[(1, 78590720), (2, 39295360), (4, 19647680), (5, 15718144), (8, 9823840), (10, 7859072), (13, 6045440), (16, 4911920), (20, 3929536), (26, 3022720), (32, 2455960), (40, 1964768), (52, 1511360), (64, 1227980), (65, 1209088), (80, 982384), (104, 755680), (128, 613990), (130, 604544), (160, 491192), (208, 377840), (256, 306995), (260, 302272), (320, 245596), (416, 188920), (520, 151136), (640, 122798), (832, 94460), (1040, 75568), (1280, 61399), (1664, 47230), (2080, 37784), (3328, 23615), (4160, 18892), (4723, 16640), (8320, 9446)]