661846900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1493}}^1$

素因数の和:1562

約数の個数: 144

約数和(自身を含む): 1742888448

約数和(自身を除く): 1081041548

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 31, 44, 50, 52, 55, 62, 65, 100, 110, 124, 130, 143, 155, 220, 260, 275, 286, 310, 325, 341, 403, 550, 572, 620, 650, 682, 715, 775, 806, 1100, 1300, 1364, 1430, 1493, 1550, 1612, 1705, 2015, 2860, 2986, 3100, 3410, 3575, 4030, 4433, 5972, 6820, 7150, 7465, 8060, 8525, 8866, 10075, 14300, 14930, 16423, 17050, 17732, 19409, 20150, 22165, 29860, 32846, 34100, 37325, 38818, 40300, 44330, 46283, 65692, 74650, 77636, 82115, 88660, 92566, 97045, 110825, 149300, 164230, 185132, 194090, 213499, 221650, 231415, 328460, 388180, 410575, 426998, 443300, 462830, 485225, 509113, 601679, 821150, 853996, 925660, 970450, 1018226, 1067495, 1157075, 1203358, 1642300, 1940900, 2036452, 2134990, 2314150, 2406716, 2545565, 3008395, 4269980, 4628300, 5091130, 5337475, 6016790, 6618469, 10182260, 10674950, 12033580, 12727825, 13236938, 15041975, 21349900, 25455650, 26473876, 30083950, 33092345, 50911300, 60167900, 66184690, 132369380, 165461725, 330923450, 661846900]

約数ペア:

[(1, 661846900), (2, 330923450), (4, 165461725), (5, 132369380), (10, 66184690), (11, 60167900), (13, 50911300), (20, 33092345), (22, 30083950), (25, 26473876), (26, 25455650), (31, 21349900), (44, 15041975), (50, 13236938), (52, 12727825), (55, 12033580), (62, 10674950), (65, 10182260), (100, 6618469), (110, 6016790), (124, 5337475), (130, 5091130), (143, 4628300), (155, 4269980), (220, 3008395), (260, 2545565), (275, 2406716), (286, 2314150), (310, 2134990), (325, 2036452), (341, 1940900), (403, 1642300), (550, 1203358), (572, 1157075), (620, 1067495), (650, 1018226), (682, 970450), (715, 925660), (775, 853996), (806, 821150), (1100, 601679), (1300, 509113), (1364, 485225), (1430, 462830), (1493, 443300), (1550, 426998), (1612, 410575), (1705, 388180), (2015, 328460), (2860, 231415), (2986, 221650), (3100, 213499), (3410, 194090), (3575, 185132), (4030, 164230), (4433, 149300), (5972, 110825), (6820, 97045), (7150, 92566), (7465, 88660), (8060, 82115), (8525, 77636), (8866, 74650), (10075, 65692), (14300, 46283), (14930, 44330), (16423, 40300), (17050, 38818), (17732, 37325), (19409, 34100), (20150, 32846), (22165, 29860)]