28664020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2659}}^1$

素因数の和:2693

約数の個数: 72

約数和(自身を含む): 76416480

約数和(自身を除く): 47752460

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2659, 2695, 5318, 5390, 10636, 10780, 13295, 18613, 26590, 29249, 37226, 53180, 58498, 74452, 93065, 116996, 130291, 146245, 186130, 204743, 260582, 292490, 372260, 409486, 521164, 584980, 651455, 818972, 1023715, 1302910, 1433201, 2047430, 2605820, 2866402, 4094860, 5732804, 7166005, 14332010, 28664020]

約数ペア:

[(1, 28664020), (2, 14332010), (4, 7166005), (5, 5732804), (7, 4094860), (10, 2866402), (11, 2605820), (14, 2047430), (20, 1433201), (22, 1302910), (28, 1023715), (35, 818972), (44, 651455), (49, 584980), (55, 521164), (70, 409486), (77, 372260), (98, 292490), (110, 260582), (140, 204743), (154, 186130), (196, 146245), (220, 130291), (245, 116996), (308, 93065), (385, 74452), (490, 58498), (539, 53180), (770, 37226), (980, 29249), (1078, 26590), (1540, 18613), (2156, 13295), (2659, 10780), (2695, 10636), (5318, 5390)]