821152020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61927}}^1$

素因数の和:61969

約数の個数: 96

約数和(自身を含む): 2621783808

約数和(自身を除く): 1800631788

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 130, 156, 170, 195, 204, 221, 255, 260, 340, 390, 442, 510, 663, 780, 884, 1020, 1105, 1326, 2210, 2652, 3315, 4420, 6630, 13260, 61927, 123854, 185781, 247708, 309635, 371562, 619270, 743124, 805051, 928905, 1052759, 1238540, 1610102, 1857810, 2105518, 2415153, 3158277, 3220204, 3715620, 4025255, 4211036, 4830306, 5263795, 6316554, 8050510, 9660612, 10527590, 12075765, 12633108, 13685867, 15791385, 16101020, 21055180, 24151530, 27371734, 31582770, 41057601, 48303060, 54743468, 63165540, 68429335, 82115202, 136858670, 164230404, 205288005, 273717340, 410576010, 821152020]

約数ペア:

[(1, 821152020), (2, 410576010), (3, 273717340), (4, 205288005), (5, 164230404), (6, 136858670), (10, 82115202), (12, 68429335), (13, 63165540), (15, 54743468), (17, 48303060), (20, 41057601), (26, 31582770), (30, 27371734), (34, 24151530), (39, 21055180), (51, 16101020), (52, 15791385), (60, 13685867), (65, 12633108), (68, 12075765), (78, 10527590), (85, 9660612), (102, 8050510), (130, 6316554), (156, 5263795), (170, 4830306), (195, 4211036), (204, 4025255), (221, 3715620), (255, 3220204), (260, 3158277), (340, 2415153), (390, 2105518), (442, 1857810), (510, 1610102), (663, 1238540), (780, 1052759), (884, 928905), (1020, 805051), (1105, 743124), (1326, 619270), (2210, 371562), (2652, 309635), (3315, 247708), (4420, 185781), (6630, 123854), (13260, 61927)]