81469910

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 163537920

約数和(自身を除く): 82068010

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 103, 115, 181, 190, 206, 230, 362, 437, 515, 874, 905, 1030, 1810, 1957, 2185, 2369, 3439, 3914, 4163, 4370, 4738, 6878, 8326, 9785, 11845, 17195, 18643, 19570, 20815, 23690, 34390, 37286, 41630, 45011, 79097, 90022, 93215, 158194, 186430, 225055, 354217, 395485, 428789, 450110, 708434, 790970, 857578, 1771085, 2143945, 3542170, 4287890, 8146991, 16293982, 40734955, 81469910]

約数ペア:

[(1, 81469910), (2, 40734955), (5, 16293982), (10, 8146991), (19, 4287890), (23, 3542170), (38, 2143945), (46, 1771085), (95, 857578), (103, 790970), (115, 708434), (181, 450110), (190, 428789), (206, 395485), (230, 354217), (362, 225055), (437, 186430), (515, 158194), (874, 93215), (905, 90022), (1030, 79097), (1810, 45011), (1957, 41630), (2185, 37286), (2369, 34390), (3439, 23690), (3914, 20815), (4163, 19570), (4370, 18643), (4738, 17195), (6878, 11845), (8326, 9785)]