18984090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 47692800

約数和(自身を除く): 28708710

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 137, 149, 155, 186, 274, 298, 310, 411, 447, 465, 685, 745, 822, 894, 930, 1370, 1490, 2055, 2235, 4110, 4247, 4470, 4619, 8494, 9238, 12741, 13857, 20413, 21235, 23095, 25482, 27714, 40826, 42470, 46190, 61239, 63705, 69285, 102065, 122478, 127410, 138570, 204130, 306195, 612390, 632803, 1265606, 1898409, 3164015, 3796818, 6328030, 9492045, 18984090]

約数ペア:

[(1, 18984090), (2, 9492045), (3, 6328030), (5, 3796818), (6, 3164015), (10, 1898409), (15, 1265606), (30, 632803), (31, 612390), (62, 306195), (93, 204130), (137, 138570), (149, 127410), (155, 122478), (186, 102065), (274, 69285), (298, 63705), (310, 61239), (411, 46190), (447, 42470), (465, 40826), (685, 27714), (745, 25482), (822, 23095), (894, 21235), (930, 20413), (1370, 13857), (1490, 12741), (2055, 9238), (2235, 8494), (4110, 4619), (4247, 4470)]