31140430

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1$

素因数の和:385

約数の個数: 64

約数和(自身を含む): 64696320

約数和(自身を除く): 33555890

約数列:

[1, 2, 5, 10, 17, 19, 31, 34, 38, 62, 85, 95, 155, 170, 190, 310, 311, 323, 527, 589, 622, 646, 1054, 1178, 1555, 1615, 2635, 2945, 3110, 3230, 5270, 5287, 5890, 5909, 9641, 10013, 10574, 11818, 19282, 20026, 26435, 29545, 48205, 50065, 52870, 59090, 96410, 100130, 100453, 163897, 183179, 200906, 327794, 366358, 502265, 819485, 915895, 1004530, 1638970, 1831790, 3114043, 6228086, 15570215, 31140430]

約数ペア:

[(1, 31140430), (2, 15570215), (5, 6228086), (10, 3114043), (17, 1831790), (19, 1638970), (31, 1004530), (34, 915895), (38, 819485), (62, 502265), (85, 366358), (95, 327794), (155, 200906), (170, 183179), (190, 163897), (310, 100453), (311, 100130), (323, 96410), (527, 59090), (589, 52870), (622, 50065), (646, 48205), (1054, 29545), (1178, 26435), (1555, 20026), (1615, 19282), (2635, 11818), (2945, 10574), (3110, 10013), (3230, 9641), (5270, 5909), (5287, 5890)]