198420640

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{277}}^1$

素因数の和:351

約数の個数: 144

約数和(自身を含む): 531094536

約数和(自身を除く): 332673896

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 37, 40, 44, 55, 74, 80, 88, 110, 121, 148, 160, 176, 185, 220, 242, 277, 296, 352, 370, 407, 440, 484, 554, 592, 605, 740, 814, 880, 968, 1108, 1184, 1210, 1385, 1480, 1628, 1760, 1936, 2035, 2216, 2420, 2770, 2960, 3047, 3256, 3872, 4070, 4432, 4477, 4840, 5540, 5920, 6094, 6512, 8140, 8864, 8954, 9680, 10249, 11080, 12188, 13024, 15235, 16280, 17908, 19360, 20498, 22160, 22385, 24376, 30470, 32560, 33517, 35816, 40996, 44320, 44770, 48752, 51245, 60940, 65120, 67034, 71632, 81992, 89540, 97504, 102490, 112739, 121880, 134068, 143264, 163984, 167585, 179080, 204980, 225478, 243760, 268136, 327968, 335170, 358160, 409960, 450956, 487520, 536272, 563695, 670340, 716320, 819920, 901912, 1072544, 1127390, 1240129, 1340680, 1639840, 1803824, 2254780, 2480258, 2681360, 3607648, 4509560, 4960516, 5362720, 6200645, 9019120, 9921032, 12401290, 18038240, 19842064, 24802580, 39684128, 49605160, 99210320, 198420640]

約数ペア:

[(1, 198420640), (2, 99210320), (4, 49605160), (5, 39684128), (8, 24802580), (10, 19842064), (11, 18038240), (16, 12401290), (20, 9921032), (22, 9019120), (32, 6200645), (37, 5362720), (40, 4960516), (44, 4509560), (55, 3607648), (74, 2681360), (80, 2480258), (88, 2254780), (110, 1803824), (121, 1639840), (148, 1340680), (160, 1240129), (176, 1127390), (185, 1072544), (220, 901912), (242, 819920), (277, 716320), (296, 670340), (352, 563695), (370, 536272), (407, 487520), (440, 450956), (484, 409960), (554, 358160), (592, 335170), (605, 327968), (740, 268136), (814, 243760), (880, 225478), (968, 204980), (1108, 179080), (1184, 167585), (1210, 163984), (1385, 143264), (1480, 134068), (1628, 121880), (1760, 112739), (1936, 102490), (2035, 97504), (2216, 89540), (2420, 81992), (2770, 71632), (2960, 67034), (3047, 65120), (3256, 60940), (3872, 51245), (4070, 48752), (4432, 44770), (4477, 44320), (4840, 40996), (5540, 35816), (5920, 33517), (6094, 32560), (6512, 30470), (8140, 24376), (8864, 22385), (8954, 22160), (9680, 20498), (10249, 19360), (11080, 17908), (12188, 16280), (13024, 15235)]