19590272

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:281

約数の個数: 64

約数和(自身を含む): 42939960

約数和(自身を除く): 23349688

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 61, 64, 104, 122, 128, 193, 208, 244, 386, 416, 488, 772, 793, 832, 976, 1544, 1586, 1664, 1952, 2509, 3088, 3172, 3904, 5018, 6176, 6344, 7808, 10036, 11773, 12352, 12688, 20072, 23546, 24704, 25376, 40144, 47092, 50752, 80288, 94184, 101504, 153049, 160576, 188368, 306098, 321152, 376736, 612196, 753472, 1224392, 1506944, 2448784, 4897568, 9795136, 19590272]

約数ペア:

[(1, 19590272), (2, 9795136), (4, 4897568), (8, 2448784), (13, 1506944), (16, 1224392), (26, 753472), (32, 612196), (52, 376736), (61, 321152), (64, 306098), (104, 188368), (122, 160576), (128, 153049), (193, 101504), (208, 94184), (244, 80288), (386, 50752), (416, 47092), (488, 40144), (772, 25376), (793, 24704), (832, 23546), (976, 20072), (1544, 12688), (1586, 12352), (1664, 11773), (1952, 10036), (2509, 7808), (3088, 6344), (3172, 6176), (3904, 5018)]