30481990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1277}}^1$

素因数の和:1333

約数の個数: 64

約数和(自身を含む): 70668288

約数和(自身を除く): 40186298

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 31, 35, 55, 62, 70, 77, 110, 154, 155, 217, 310, 341, 385, 434, 682, 770, 1085, 1277, 1705, 2170, 2387, 2554, 3410, 4774, 6385, 8939, 11935, 12770, 14047, 17878, 23870, 28094, 39587, 44695, 70235, 79174, 89390, 98329, 140470, 196658, 197935, 277109, 395870, 435457, 491645, 554218, 870914, 983290, 1385545, 2177285, 2771090, 3048199, 4354570, 6096398, 15240995, 30481990]

約数ペア:

[(1, 30481990), (2, 15240995), (5, 6096398), (7, 4354570), (10, 3048199), (11, 2771090), (14, 2177285), (22, 1385545), (31, 983290), (35, 870914), (55, 554218), (62, 491645), (70, 435457), (77, 395870), (110, 277109), (154, 197935), (155, 196658), (217, 140470), (310, 98329), (341, 89390), (385, 79174), (434, 70235), (682, 44695), (770, 39587), (1085, 28094), (1277, 23870), (1705, 17878), (2170, 14047), (2387, 12770), (2554, 11935), (3410, 8939), (4774, 6385)]