128959620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{239}}^1$

素因数の和:314

約数の個数: 144

約数和(自身を含む): 401345280

約数和(自身を除く): 272385660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 23, 30, 34, 46, 51, 60, 68, 69, 85, 92, 102, 115, 138, 170, 204, 230, 239, 255, 276, 340, 345, 391, 460, 478, 510, 529, 690, 717, 782, 956, 1020, 1058, 1173, 1195, 1380, 1434, 1564, 1587, 1955, 2116, 2346, 2390, 2645, 2868, 3174, 3585, 3910, 4063, 4692, 4780, 5290, 5497, 5865, 6348, 7170, 7820, 7935, 8126, 8993, 10580, 10994, 11730, 12189, 14340, 15870, 16252, 16491, 17986, 20315, 21988, 23460, 24378, 26979, 27485, 31740, 32982, 35972, 40630, 44965, 48756, 53958, 54970, 60945, 65964, 81260, 82455, 89930, 93449, 107916, 109940, 121890, 126431, 134895, 164910, 179860, 186898, 243780, 252862, 269790, 280347, 329820, 373796, 379293, 467245, 505724, 539580, 560694, 632155, 758586, 934490, 1121388, 1264310, 1401735, 1517172, 1868980, 1896465, 2149327, 2528620, 2803470, 3792930, 4298654, 5606940, 6447981, 7585860, 8597308, 10746635, 12895962, 21493270, 25791924, 32239905, 42986540, 64479810, 128959620]

約数ペア:

[(1, 128959620), (2, 64479810), (3, 42986540), (4, 32239905), (5, 25791924), (6, 21493270), (10, 12895962), (12, 10746635), (15, 8597308), (17, 7585860), (20, 6447981), (23, 5606940), (30, 4298654), (34, 3792930), (46, 2803470), (51, 2528620), (60, 2149327), (68, 1896465), (69, 1868980), (85, 1517172), (92, 1401735), (102, 1264310), (115, 1121388), (138, 934490), (170, 758586), (204, 632155), (230, 560694), (239, 539580), (255, 505724), (276, 467245), (340, 379293), (345, 373796), (391, 329820), (460, 280347), (478, 269790), (510, 252862), (529, 243780), (690, 186898), (717, 179860), (782, 164910), (956, 134895), (1020, 126431), (1058, 121890), (1173, 109940), (1195, 107916), (1380, 93449), (1434, 89930), (1564, 82455), (1587, 81260), (1955, 65964), (2116, 60945), (2346, 54970), (2390, 53958), (2645, 48756), (2868, 44965), (3174, 40630), (3585, 35972), (3910, 32982), (4063, 31740), (4692, 27485), (4780, 26979), (5290, 24378), (5497, 23460), (5865, 21988), (6348, 20315), (7170, 17986), (7820, 16491), (7935, 16252), (8126, 15870), (8993, 14340), (10580, 12189), (10994, 11730)]