278380649300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9791}}^1\times {\mathrm{21871}}^1$

素因数の和:31689

約数の個数: 72

約数和(自身を含む): 650650355712

約数和(自身を除く): 372269706412

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 9791, 19582, 21871, 39164, 43742, 48955, 87484, 97910, 109355, 127283, 195820, 218710, 244775, 254566, 284323, 437420, 489550, 509132, 546775, 568646, 636415, 979100, 1093550, 1137292, 1272830, 1421615, 2187100, 2545660, 2843230, 3182075, 5686460, 6364150, 7108075, 12728300, 14216150, 28432300, 214138961, 428277922, 856555844, 1070694805, 2141389610, 2783806493, 4282779220, 5353474025, 5567612986, 10706948050, 11135225972, 13919032465, 21413896100, 27838064930, 55676129860, 69595162325, 139190324650, 278380649300]

約数ペア:

[(1, 278380649300), (2, 139190324650), (4, 69595162325), (5, 55676129860), (10, 27838064930), (13, 21413896100), (20, 13919032465), (25, 11135225972), (26, 10706948050), (50, 5567612986), (52, 5353474025), (65, 4282779220), (100, 2783806493), (130, 2141389610), (260, 1070694805), (325, 856555844), (650, 428277922), (1300, 214138961), (9791, 28432300), (19582, 14216150), (21871, 12728300), (39164, 7108075), (43742, 6364150), (48955, 5686460), (87484, 3182075), (97910, 2843230), (109355, 2545660), (127283, 2187100), (195820, 1421615), (218710, 1272830), (244775, 1137292), (254566, 1093550), (284323, 979100), (437420, 636415), (489550, 568646), (509132, 546775)]