1996487605

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:267

約数の個数: 96

約数和(自身を含む): 3053376000

約数和(自身を除く): 1056888395

約数列:

[1, 5, 7, 19, 35, 49, 61, 79, 89, 95, 133, 245, 305, 395, 427, 445, 553, 623, 665, 931, 1159, 1501, 1691, 2135, 2765, 2989, 3115, 3871, 4361, 4655, 4819, 5429, 5795, 7031, 7505, 8113, 8455, 10507, 11837, 14945, 19355, 21805, 24095, 27145, 33733, 35155, 38003, 40565, 49217, 52535, 56791, 59185, 73549, 82859, 91561, 103151, 133589, 168665, 190015, 236131, 246085, 266021, 283955, 344519, 367745, 414295, 428891, 457805, 515755, 640927, 667945, 722057, 935123, 1180655, 1330105, 1722595, 2144455, 3002237, 3204635, 3610285, 4486489, 4675615, 5054399, 6545861, 8148929, 15011185, 21015659, 22432445, 25271995, 32729305, 40744645, 57042503, 105078295, 285212515, 399297521, 1996487605]

約数ペア:

[(1, 1996487605), (5, 399297521), (7, 285212515), (19, 105078295), (35, 57042503), (49, 40744645), (61, 32729305), (79, 25271995), (89, 22432445), (95, 21015659), (133, 15011185), (245, 8148929), (305, 6545861), (395, 5054399), (427, 4675615), (445, 4486489), (553, 3610285), (623, 3204635), (665, 3002237), (931, 2144455), (1159, 1722595), (1501, 1330105), (1691, 1180655), (2135, 935123), (2765, 722057), (2989, 667945), (3115, 640927), (3871, 515755), (4361, 457805), (4655, 428891), (4819, 414295), (5429, 367745), (5795, 344519), (7031, 283955), (7505, 266021), (8113, 246085), (8455, 236131), (10507, 190015), (11837, 168665), (14945, 133589), (19355, 103151), (21805, 91561), (24095, 82859), (27145, 73549), (33733, 59185), (35155, 56791), (38003, 52535), (40565, 49217)]