1900542820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{659}}^1\times {\mathrm{13109}}^1$

素因数の和:13788

約数の個数: 48

約数和(自身を含む): 4360910400

約数和(自身を除く): 2460367580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 659, 1318, 2636, 3295, 6590, 7249, 13109, 13180, 14498, 26218, 28996, 36245, 52436, 65545, 72490, 131090, 144199, 144980, 262180, 288398, 576796, 720995, 1441990, 2883980, 8638831, 17277662, 34555324, 43194155, 86388310, 95027141, 172776620, 190054282, 380108564, 475135705, 950271410, 1900542820]

約数ペア:

[(1, 1900542820), (2, 950271410), (4, 475135705), (5, 380108564), (10, 190054282), (11, 172776620), (20, 95027141), (22, 86388310), (44, 43194155), (55, 34555324), (110, 17277662), (220, 8638831), (659, 2883980), (1318, 1441990), (2636, 720995), (3295, 576796), (6590, 288398), (7249, 262180), (13109, 144980), (13180, 144199), (14498, 131090), (26218, 72490), (28996, 65545), (36245, 52436)]