81230080

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3733}}^1$

素因数の和:3771

約数の個数: 72

約数和(自身を含む): 206071992

約数和(自身を除く): 124841912

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 544, 640, 680, 1088, 1280, 1360, 2176, 2720, 3733, 4352, 5440, 7466, 10880, 14932, 18665, 21760, 29864, 37330, 59728, 63461, 74660, 119456, 126922, 149320, 238912, 253844, 298640, 317305, 477824, 507688, 597280, 634610, 955648, 1015376, 1194560, 1269220, 2030752, 2389120, 2538440, 4061504, 4778240, 5076880, 8123008, 10153760, 16246016, 20307520, 40615040, 81230080]

約数ペア:

[(1, 81230080), (2, 40615040), (4, 20307520), (5, 16246016), (8, 10153760), (10, 8123008), (16, 5076880), (17, 4778240), (20, 4061504), (32, 2538440), (34, 2389120), (40, 2030752), (64, 1269220), (68, 1194560), (80, 1015376), (85, 955648), (128, 634610), (136, 597280), (160, 507688), (170, 477824), (256, 317305), (272, 298640), (320, 253844), (340, 238912), (544, 149320), (640, 126922), (680, 119456), (1088, 74660), (1280, 63461), (1360, 59728), (2176, 37330), (2720, 29864), (3733, 21760), (4352, 18665), (5440, 14932), (7466, 10880)]