71217960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{331}}^1$

素因数の和:519

約数の個数: 128

約数和(自身を含む): 235215360

約数和(自身を除く): 163997400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 163, 165, 220, 264, 326, 330, 331, 440, 489, 652, 660, 662, 815, 978, 993, 1304, 1320, 1324, 1630, 1655, 1793, 1956, 1986, 2445, 2648, 3260, 3310, 3586, 3641, 3912, 3972, 4890, 4965, 5379, 6520, 6620, 7172, 7282, 7944, 8965, 9780, 9930, 10758, 10923, 13240, 14344, 14564, 17930, 18205, 19560, 19860, 21516, 21846, 26895, 29128, 35860, 36410, 39720, 43032, 43692, 53790, 53953, 54615, 71720, 72820, 87384, 107580, 107906, 109230, 145640, 161859, 215160, 215812, 218460, 269765, 323718, 431624, 436920, 539530, 593483, 647436, 809295, 1079060, 1186966, 1294872, 1618590, 1780449, 2158120, 2373932, 2967415, 3237180, 3560898, 4747864, 5934830, 6474360, 7121796, 8902245, 11869660, 14243592, 17804490, 23739320, 35608980, 71217960]

約数ペア:

[(1, 71217960), (2, 35608980), (3, 23739320), (4, 17804490), (5, 14243592), (6, 11869660), (8, 8902245), (10, 7121796), (11, 6474360), (12, 5934830), (15, 4747864), (20, 3560898), (22, 3237180), (24, 2967415), (30, 2373932), (33, 2158120), (40, 1780449), (44, 1618590), (55, 1294872), (60, 1186966), (66, 1079060), (88, 809295), (110, 647436), (120, 593483), (132, 539530), (163, 436920), (165, 431624), (220, 323718), (264, 269765), (326, 218460), (330, 215812), (331, 215160), (440, 161859), (489, 145640), (652, 109230), (660, 107906), (662, 107580), (815, 87384), (978, 72820), (993, 71720), (1304, 54615), (1320, 53953), (1324, 53790), (1630, 43692), (1655, 43032), (1793, 39720), (1956, 36410), (1986, 35860), (2445, 29128), (2648, 26895), (3260, 21846), (3310, 21516), (3586, 19860), (3641, 19560), (3912, 18205), (3972, 17930), (4890, 14564), (4965, 14344), (5379, 13240), (6520, 10923), (6620, 10758), (7172, 9930), (7282, 9780), (7944, 8965)]