81424980

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1657}}^1$

素因数の和:1695

約数の個数: 192

約数和(自身を含む): 311969280

約数和(自身を除く): 230544300

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 27, 28, 30, 35, 36, 39, 42, 45, 52, 54, 60, 63, 65, 70, 78, 84, 90, 91, 105, 108, 117, 126, 130, 135, 140, 156, 180, 182, 189, 195, 210, 234, 252, 260, 270, 273, 315, 351, 364, 378, 390, 420, 455, 468, 540, 546, 585, 630, 702, 756, 780, 819, 910, 945, 1092, 1170, 1260, 1365, 1404, 1638, 1657, 1755, 1820, 1890, 2340, 2457, 2730, 3276, 3314, 3510, 3780, 4095, 4914, 4971, 5460, 6628, 7020, 8190, 8285, 9828, 9942, 11599, 12285, 14913, 16380, 16570, 19884, 21541, 23198, 24570, 24855, 29826, 33140, 34797, 43082, 44739, 46396, 49140, 49710, 57995, 59652, 64623, 69594, 74565, 86164, 89478, 99420, 104391, 107705, 115990, 129246, 139188, 149130, 150787, 173985, 178956, 193869, 208782, 215410, 223695, 231980, 258492, 298260, 301574, 313173, 323115, 347970, 387738, 417564, 430820, 447390, 452361, 521955, 581607, 603148, 626346, 646230, 695940, 753935, 775476, 894780, 904722, 969345, 1043910, 1163214, 1252692, 1292460, 1357083, 1507870, 1565865, 1809444, 1938690, 2087820, 2261805, 2326428, 2714166, 2908035, 3015740, 3131730, 3877380, 4071249, 4523610, 5428332, 5816070, 6263460, 6785415, 8142498, 9047220, 11632140, 13570830, 16284996, 20356245, 27141660, 40712490, 81424980]

約数ペア:

[(1, 81424980), (2, 40712490), (3, 27141660), (4, 20356245), (5, 16284996), (6, 13570830), (7, 11632140), (9, 9047220), (10, 8142498), (12, 6785415), (13, 6263460), (14, 5816070), (15, 5428332), (18, 4523610), (20, 4071249), (21, 3877380), (26, 3131730), (27, 3015740), (28, 2908035), (30, 2714166), (35, 2326428), (36, 2261805), (39, 2087820), (42, 1938690), (45, 1809444), (52, 1565865), (54, 1507870), (60, 1357083), (63, 1292460), (65, 1252692), (70, 1163214), (78, 1043910), (84, 969345), (90, 904722), (91, 894780), (105, 775476), (108, 753935), (117, 695940), (126, 646230), (130, 626346), (135, 603148), (140, 581607), (156, 521955), (180, 452361), (182, 447390), (189, 430820), (195, 417564), (210, 387738), (234, 347970), (252, 323115), (260, 313173), (270, 301574), (273, 298260), (315, 258492), (351, 231980), (364, 223695), (378, 215410), (390, 208782), (420, 193869), (455, 178956), (468, 173985), (540, 150787), (546, 149130), (585, 139188), (630, 129246), (702, 115990), (756, 107705), (780, 104391), (819, 99420), (910, 89478), (945, 86164), (1092, 74565), (1170, 69594), (1260, 64623), (1365, 59652), (1404, 57995), (1638, 49710), (1657, 49140), (1755, 46396), (1820, 44739), (1890, 43082), (2340, 34797), (2457, 33140), (2730, 29826), (3276, 24855), (3314, 24570), (3510, 23198), (3780, 21541), (4095, 19884), (4914, 16570), (4971, 16380), (5460, 14913), (6628, 12285), (7020, 11599), (8190, 9942), (8285, 9828)]