397418450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:241

約数の個数: 144

約数和(自身を含む): 908775168

約数和(自身を除く): 511356718

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 31, 50, 55, 62, 65, 110, 121, 130, 143, 155, 163, 242, 275, 286, 310, 325, 326, 341, 403, 550, 605, 650, 682, 715, 775, 806, 815, 1210, 1430, 1550, 1573, 1630, 1705, 1793, 2015, 2119, 3025, 3146, 3410, 3575, 3586, 3751, 4030, 4075, 4238, 4433, 5053, 6050, 7150, 7502, 7865, 8150, 8525, 8866, 8965, 10075, 10106, 10595, 15730, 17050, 17930, 18755, 19723, 20150, 21190, 22165, 23309, 25265, 37510, 39325, 39446, 44330, 44825, 46618, 48763, 50530, 52975, 55583, 65689, 78650, 89650, 93775, 97526, 98615, 105950, 110825, 111166, 116545, 126325, 131378, 187550, 197230, 221650, 233090, 243815, 252650, 256399, 277915, 328445, 487630, 493075, 512798, 555830, 582725, 611413, 656890, 722579, 986150, 1165450, 1219075, 1222826, 1281995, 1389575, 1445158, 1642225, 2438150, 2563990, 2779150, 3057065, 3284450, 3612895, 6114130, 6409975, 7225790, 7948369, 12819950, 15285325, 15896738, 18064475, 30570650, 36128950, 39741845, 79483690, 198709225, 397418450]

約数ペア:

[(1, 397418450), (2, 198709225), (5, 79483690), (10, 39741845), (11, 36128950), (13, 30570650), (22, 18064475), (25, 15896738), (26, 15285325), (31, 12819950), (50, 7948369), (55, 7225790), (62, 6409975), (65, 6114130), (110, 3612895), (121, 3284450), (130, 3057065), (143, 2779150), (155, 2563990), (163, 2438150), (242, 1642225), (275, 1445158), (286, 1389575), (310, 1281995), (325, 1222826), (326, 1219075), (341, 1165450), (403, 986150), (550, 722579), (605, 656890), (650, 611413), (682, 582725), (715, 555830), (775, 512798), (806, 493075), (815, 487630), (1210, 328445), (1430, 277915), (1550, 256399), (1573, 252650), (1630, 243815), (1705, 233090), (1793, 221650), (2015, 197230), (2119, 187550), (3025, 131378), (3146, 126325), (3410, 116545), (3575, 111166), (3586, 110825), (3751, 105950), (4030, 98615), (4075, 97526), (4238, 93775), (4433, 89650), (5053, 78650), (6050, 65689), (7150, 55583), (7502, 52975), (7865, 50530), (8150, 48763), (8525, 46618), (8866, 44825), (8965, 44330), (10075, 39446), (10106, 39325), (10595, 37510), (15730, 25265), (17050, 23309), (17930, 22165), (18755, 21190), (19723, 20150)]