20245838720

素因数分解:

$2^7\times 5^1\times {\mathrm{2659}}^1\times {\mathrm{11897}}^1$

素因数の和:14575

約数の個数: 64

約数和(自身を含む): 48422480400

約数和(自身を除く): 28176641680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 2659, 5318, 10636, 11897, 13295, 21272, 23794, 26590, 42544, 47588, 53180, 59485, 85088, 95176, 106360, 118970, 170176, 190352, 212720, 237940, 340352, 380704, 425440, 475880, 761408, 850880, 951760, 1522816, 1701760, 1903520, 3807040, 7614080, 31634123, 63268246, 126536492, 158170615, 253072984, 316341230, 506145968, 632682460, 1012291936, 1265364920, 2024583872, 2530729840, 4049167744, 5061459680, 10122919360, 20245838720]

約数ペア:

[(1, 20245838720), (2, 10122919360), (4, 5061459680), (5, 4049167744), (8, 2530729840), (10, 2024583872), (16, 1265364920), (20, 1012291936), (32, 632682460), (40, 506145968), (64, 316341230), (80, 253072984), (128, 158170615), (160, 126536492), (320, 63268246), (640, 31634123), (2659, 7614080), (5318, 3807040), (10636, 1903520), (11897, 1701760), (13295, 1522816), (21272, 951760), (23794, 850880), (26590, 761408), (42544, 475880), (47588, 425440), (53180, 380704), (59485, 340352), (85088, 237940), (95176, 212720), (106360, 190352), (118970, 170176)]