18923940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{653}}^1$

素因数の和:698

約数の個数: 144

約数和(自身を含む): 68560128

約数和(自身を除く): 49636188

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 30, 35, 36, 42, 45, 46, 60, 63, 69, 70, 84, 90, 92, 105, 115, 126, 138, 140, 161, 180, 207, 210, 230, 252, 276, 315, 322, 345, 414, 420, 460, 483, 630, 644, 653, 690, 805, 828, 966, 1035, 1260, 1306, 1380, 1449, 1610, 1932, 1959, 2070, 2415, 2612, 2898, 3220, 3265, 3918, 4140, 4571, 4830, 5796, 5877, 6530, 7245, 7836, 9142, 9660, 9795, 11754, 13060, 13713, 14490, 15019, 18284, 19590, 22855, 23508, 27426, 28980, 29385, 30038, 39180, 41139, 45057, 45710, 54852, 58770, 60076, 68565, 75095, 82278, 90114, 91420, 105133, 117540, 135171, 137130, 150190, 164556, 180228, 205695, 210266, 225285, 270342, 274260, 300380, 315399, 411390, 420532, 450570, 525665, 540684, 630798, 675855, 822780, 901140, 946197, 1051330, 1261596, 1351710, 1576995, 1892394, 2102660, 2703420, 3153990, 3784788, 4730985, 6307980, 9461970, 18923940]

約数ペア:

[(1, 18923940), (2, 9461970), (3, 6307980), (4, 4730985), (5, 3784788), (6, 3153990), (7, 2703420), (9, 2102660), (10, 1892394), (12, 1576995), (14, 1351710), (15, 1261596), (18, 1051330), (20, 946197), (21, 901140), (23, 822780), (28, 675855), (30, 630798), (35, 540684), (36, 525665), (42, 450570), (45, 420532), (46, 411390), (60, 315399), (63, 300380), (69, 274260), (70, 270342), (84, 225285), (90, 210266), (92, 205695), (105, 180228), (115, 164556), (126, 150190), (138, 137130), (140, 135171), (161, 117540), (180, 105133), (207, 91420), (210, 90114), (230, 82278), (252, 75095), (276, 68565), (315, 60076), (322, 58770), (345, 54852), (414, 45710), (420, 45057), (460, 41139), (483, 39180), (630, 30038), (644, 29385), (653, 28980), (690, 27426), (805, 23508), (828, 22855), (966, 19590), (1035, 18284), (1260, 15019), (1306, 14490), (1380, 13713), (1449, 13060), (1610, 11754), (1932, 9795), (1959, 9660), (2070, 9142), (2415, 7836), (2612, 7245), (2898, 6530), (3220, 5877), (3265, 5796), (3918, 4830), (4140, 4571)]