161506280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1$

素因数の和:331

約数の個数: 128

約数和(自身を含む): 415134720

約数和(自身を除く): 253628440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 43, 52, 62, 65, 86, 104, 124, 130, 155, 172, 215, 233, 248, 260, 310, 344, 403, 430, 466, 520, 559, 620, 806, 860, 932, 1118, 1165, 1240, 1333, 1612, 1720, 1864, 2015, 2236, 2330, 2666, 2795, 3029, 3224, 4030, 4472, 4660, 5332, 5590, 6058, 6665, 7223, 8060, 9320, 10019, 10664, 11180, 12116, 13330, 14446, 15145, 16120, 17329, 20038, 22360, 24232, 26660, 28892, 30290, 34658, 36115, 40076, 50095, 53320, 57784, 60580, 69316, 72230, 80152, 86645, 93899, 100190, 121160, 130247, 138632, 144460, 173290, 187798, 200380, 260494, 288920, 310589, 346580, 375596, 400760, 469495, 520988, 621178, 651235, 693160, 751192, 938990, 1041976, 1242356, 1302470, 1552945, 1877980, 2484712, 2604940, 3105890, 3755960, 4037657, 5209880, 6211780, 8075314, 12423560, 16150628, 20188285, 32301256, 40376570, 80753140, 161506280]

約数ペア:

[(1, 161506280), (2, 80753140), (4, 40376570), (5, 32301256), (8, 20188285), (10, 16150628), (13, 12423560), (20, 8075314), (26, 6211780), (31, 5209880), (40, 4037657), (43, 3755960), (52, 3105890), (62, 2604940), (65, 2484712), (86, 1877980), (104, 1552945), (124, 1302470), (130, 1242356), (155, 1041976), (172, 938990), (215, 751192), (233, 693160), (248, 651235), (260, 621178), (310, 520988), (344, 469495), (403, 400760), (430, 375596), (466, 346580), (520, 310589), (559, 288920), (620, 260494), (806, 200380), (860, 187798), (932, 173290), (1118, 144460), (1165, 138632), (1240, 130247), (1333, 121160), (1612, 100190), (1720, 93899), (1864, 86645), (2015, 80152), (2236, 72230), (2330, 69316), (2666, 60580), (2795, 57784), (3029, 53320), (3224, 50095), (4030, 40076), (4472, 36115), (4660, 34658), (5332, 30290), (5590, 28892), (6058, 26660), (6665, 24232), (7223, 22360), (8060, 20038), (9320, 17329), (10019, 16120), (10664, 15145), (11180, 14446), (12116, 13330)]