221131370

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{313}}^1$

素因数の和:447

約数の個数: 64

約数和(自身を含む): 429732864

約数和(自身を除く): 208601494

約数列:

[1, 2, 5, 10, 31, 43, 53, 62, 86, 106, 155, 215, 265, 310, 313, 430, 530, 626, 1333, 1565, 1643, 2279, 2666, 3130, 3286, 4558, 6665, 8215, 9703, 11395, 13330, 13459, 16430, 16589, 19406, 22790, 26918, 33178, 48515, 67295, 70649, 82945, 97030, 134590, 141298, 165890, 353245, 417229, 514259, 706490, 713327, 834458, 1028518, 1426654, 2086145, 2571295, 3566635, 4172290, 5142590, 7133270, 22113137, 44226274, 110565685, 221131370]

約数ペア:

[(1, 221131370), (2, 110565685), (5, 44226274), (10, 22113137), (31, 7133270), (43, 5142590), (53, 4172290), (62, 3566635), (86, 2571295), (106, 2086145), (155, 1426654), (215, 1028518), (265, 834458), (310, 713327), (313, 706490), (430, 514259), (530, 417229), (626, 353245), (1333, 165890), (1565, 141298), (1643, 134590), (2279, 97030), (2666, 82945), (3130, 70649), (3286, 67295), (4558, 48515), (6665, 33178), (8215, 26918), (9703, 22790), (11395, 19406), (13330, 16589), (13459, 16430)]