280805280

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{11939}}^1$

素因数の和:11971

約数の個数: 144

約数和(自身を含む): 1029036960

約数和(自身を除く): 748231680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 840, 980, 1120, 1176, 1470, 1568, 1680, 1960, 2352, 2940, 3360, 3920, 4704, 5880, 7840, 11760, 11939, 23520, 23878, 35817, 47756, 59695, 71634, 83573, 95512, 119390, 143268, 167146, 179085, 191024, 238780, 250719, 286536, 334292, 358170, 382048, 417865, 477560, 501438, 573072, 585011, 668584, 716340, 835730, 955120, 1002876, 1146144, 1170022, 1253595, 1337168, 1432680, 1671460, 1755033, 1910240, 2005752, 2340044, 2507190, 2674336, 2865360, 2925055, 3342920, 3510066, 4011504, 4680088, 5014380, 5730720, 5850110, 6685840, 7020132, 8023008, 8775165, 9360176, 10028760, 11700220, 13371680, 14040264, 17550330, 18720352, 20057520, 23400440, 28080528, 35100660, 40115040, 46800880, 56161056, 70201320, 93601760, 140402640, 280805280]

約数ペア:

[(1, 280805280), (2, 140402640), (3, 93601760), (4, 70201320), (5, 56161056), (6, 46800880), (7, 40115040), (8, 35100660), (10, 28080528), (12, 23400440), (14, 20057520), (15, 18720352), (16, 17550330), (20, 14040264), (21, 13371680), (24, 11700220), (28, 10028760), (30, 9360176), (32, 8775165), (35, 8023008), (40, 7020132), (42, 6685840), (48, 5850110), (49, 5730720), (56, 5014380), (60, 4680088), (70, 4011504), (80, 3510066), (84, 3342920), (96, 2925055), (98, 2865360), (105, 2674336), (112, 2507190), (120, 2340044), (140, 2005752), (147, 1910240), (160, 1755033), (168, 1671460), (196, 1432680), (210, 1337168), (224, 1253595), (240, 1170022), (245, 1146144), (280, 1002876), (294, 955120), (336, 835730), (392, 716340), (420, 668584), (480, 585011), (490, 573072), (560, 501438), (588, 477560), (672, 417865), (735, 382048), (784, 358170), (840, 334292), (980, 286536), (1120, 250719), (1176, 238780), (1470, 191024), (1568, 179085), (1680, 167146), (1960, 143268), (2352, 119390), (2940, 95512), (3360, 83573), (3920, 71634), (4704, 59695), (5880, 47756), (7840, 35817), (11760, 23878), (11939, 23520)]