1888666880

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{77659}}^1$

素因数の和:77699

約数の個数: 72

約数和(自身を含む): 4762111200

約数和(自身を除く): 2873444320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 608, 640, 760, 1216, 1280, 1520, 2432, 3040, 4864, 6080, 12160, 24320, 77659, 155318, 310636, 388295, 621272, 776590, 1242544, 1475521, 1553180, 2485088, 2951042, 3106360, 4970176, 5902084, 6212720, 7377605, 9940352, 11804168, 12425440, 14755210, 19880704, 23608336, 24850880, 29510420, 47216672, 49701760, 59020840, 94433344, 99403520, 118041680, 188866688, 236083360, 377733376, 472166720, 944333440, 1888666880]

約数ペア:

[(1, 1888666880), (2, 944333440), (4, 472166720), (5, 377733376), (8, 236083360), (10, 188866688), (16, 118041680), (19, 99403520), (20, 94433344), (32, 59020840), (38, 49701760), (40, 47216672), (64, 29510420), (76, 24850880), (80, 23608336), (95, 19880704), (128, 14755210), (152, 12425440), (160, 11804168), (190, 9940352), (256, 7377605), (304, 6212720), (320, 5902084), (380, 4970176), (608, 3106360), (640, 2951042), (760, 2485088), (1216, 1553180), (1280, 1475521), (1520, 1242544), (2432, 776590), (3040, 621272), (4864, 388295), (6080, 310636), (12160, 155318), (24320, 77659)]