161640820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1$

素因数の和:361

約数の個数: 96

約数和(自身を含む): 387265536

約数和(自身を除く): 225624716

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 137, 155, 173, 220, 274, 310, 341, 346, 548, 620, 682, 685, 692, 865, 1364, 1370, 1507, 1705, 1730, 1903, 2740, 3014, 3410, 3460, 3806, 4247, 5363, 6028, 6820, 7535, 7612, 8494, 9515, 10726, 15070, 16988, 19030, 21235, 21452, 23701, 26815, 30140, 38060, 42470, 46717, 47402, 53630, 58993, 84940, 93434, 94804, 107260, 117986, 118505, 186868, 233585, 235972, 237010, 260711, 294965, 467170, 474020, 521422, 589930, 734731, 934340, 1042844, 1179860, 1303555, 1469462, 2607110, 2938924, 3673655, 5214220, 7347310, 8082041, 14694620, 16164082, 32328164, 40410205, 80820410, 161640820]

約数ペア:

[(1, 161640820), (2, 80820410), (4, 40410205), (5, 32328164), (10, 16164082), (11, 14694620), (20, 8082041), (22, 7347310), (31, 5214220), (44, 3673655), (55, 2938924), (62, 2607110), (110, 1469462), (124, 1303555), (137, 1179860), (155, 1042844), (173, 934340), (220, 734731), (274, 589930), (310, 521422), (341, 474020), (346, 467170), (548, 294965), (620, 260711), (682, 237010), (685, 235972), (692, 233585), (865, 186868), (1364, 118505), (1370, 117986), (1507, 107260), (1705, 94804), (1730, 93434), (1903, 84940), (2740, 58993), (3014, 53630), (3410, 47402), (3460, 46717), (3806, 42470), (4247, 38060), (5363, 30140), (6028, 26815), (6820, 23701), (7535, 21452), (7612, 21235), (8494, 19030), (9515, 16988), (10726, 15070)]