18721560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1091}}^1$

素因数の和:1129

約数の個数: 128

約数和(自身を含む): 66044160

約数和(自身を除く): 47322600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 20, 22, 24, 26, 30, 33, 39, 40, 44, 52, 55, 60, 65, 66, 78, 88, 104, 110, 120, 130, 132, 143, 156, 165, 195, 220, 260, 264, 286, 312, 330, 390, 429, 440, 520, 572, 660, 715, 780, 858, 1091, 1144, 1320, 1430, 1560, 1716, 2145, 2182, 2860, 3273, 3432, 4290, 4364, 5455, 5720, 6546, 8580, 8728, 10910, 12001, 13092, 14183, 16365, 17160, 21820, 24002, 26184, 28366, 32730, 36003, 42549, 43640, 48004, 56732, 60005, 65460, 70915, 72006, 85098, 96008, 113464, 120010, 130920, 141830, 144012, 156013, 170196, 180015, 212745, 240020, 283660, 288024, 312026, 340392, 360030, 425490, 468039, 480040, 567320, 624052, 720060, 780065, 850980, 936078, 1248104, 1440120, 1560130, 1701960, 1872156, 2340195, 3120260, 3744312, 4680390, 6240520, 9360780, 18721560]

約数ペア:

[(1, 18721560), (2, 9360780), (3, 6240520), (4, 4680390), (5, 3744312), (6, 3120260), (8, 2340195), (10, 1872156), (11, 1701960), (12, 1560130), (13, 1440120), (15, 1248104), (20, 936078), (22, 850980), (24, 780065), (26, 720060), (30, 624052), (33, 567320), (39, 480040), (40, 468039), (44, 425490), (52, 360030), (55, 340392), (60, 312026), (65, 288024), (66, 283660), (78, 240020), (88, 212745), (104, 180015), (110, 170196), (120, 156013), (130, 144012), (132, 141830), (143, 130920), (156, 120010), (165, 113464), (195, 96008), (220, 85098), (260, 72006), (264, 70915), (286, 65460), (312, 60005), (330, 56732), (390, 48004), (429, 43640), (440, 42549), (520, 36003), (572, 32730), (660, 28366), (715, 26184), (780, 24002), (858, 21820), (1091, 17160), (1144, 16365), (1320, 14183), (1430, 13092), (1560, 12001), (1716, 10910), (2145, 8728), (2182, 8580), (2860, 6546), (3273, 5720), (3432, 5455), (4290, 4364)]