18520740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{14699}}^1$

素因数の和:14721

約数の個数: 72

約数和(自身を含む): 64209600

約数和(自身を除く): 45688860

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 14699, 29398, 44097, 58796, 73495, 88194, 102893, 132291, 146990, 176388, 205786, 220485, 264582, 293980, 308679, 411572, 440970, 514465, 529164, 617358, 661455, 881940, 926037, 1028930, 1234716, 1322910, 1543395, 1852074, 2057860, 2645820, 3086790, 3704148, 4630185, 6173580, 9260370, 18520740]

約数ペア:

[(1, 18520740), (2, 9260370), (3, 6173580), (4, 4630185), (5, 3704148), (6, 3086790), (7, 2645820), (9, 2057860), (10, 1852074), (12, 1543395), (14, 1322910), (15, 1234716), (18, 1028930), (20, 926037), (21, 881940), (28, 661455), (30, 617358), (35, 529164), (36, 514465), (42, 440970), (45, 411572), (60, 308679), (63, 293980), (70, 264582), (84, 220485), (90, 205786), (105, 176388), (126, 146990), (140, 132291), (180, 102893), (210, 88194), (252, 73495), (315, 58796), (420, 44097), (630, 29398), (1260, 14699)]