19471980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:367

約数の個数: 96

約数和(自身を含む): 60173568

約数和(自身を除く): 40701588

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 163, 165, 181, 220, 326, 330, 362, 489, 543, 652, 660, 724, 815, 905, 978, 1086, 1630, 1793, 1810, 1956, 1991, 2172, 2445, 2715, 3260, 3586, 3620, 3982, 4890, 5379, 5430, 5973, 7172, 7964, 8965, 9780, 9955, 10758, 10860, 11946, 17930, 19910, 21516, 23892, 26895, 29503, 29865, 35860, 39820, 53790, 59006, 59730, 88509, 107580, 118012, 119460, 147515, 177018, 295030, 324533, 354036, 442545, 590060, 649066, 885090, 973599, 1298132, 1622665, 1770180, 1947198, 3245330, 3894396, 4867995, 6490660, 9735990, 19471980]

約数ペア:

[(1, 19471980), (2, 9735990), (3, 6490660), (4, 4867995), (5, 3894396), (6, 3245330), (10, 1947198), (11, 1770180), (12, 1622665), (15, 1298132), (20, 973599), (22, 885090), (30, 649066), (33, 590060), (44, 442545), (55, 354036), (60, 324533), (66, 295030), (110, 177018), (132, 147515), (163, 119460), (165, 118012), (181, 107580), (220, 88509), (326, 59730), (330, 59006), (362, 53790), (489, 39820), (543, 35860), (652, 29865), (660, 29503), (724, 26895), (815, 23892), (905, 21516), (978, 19910), (1086, 17930), (1630, 11946), (1793, 10860), (1810, 10758), (1956, 9955), (1991, 9780), (2172, 8965), (2445, 7964), (2715, 7172), (3260, 5973), (3586, 5430), (3620, 5379), (3982, 4890)]