20645970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1249}}^1$

素因数の和:1307

約数の個数: 64

約数和(自身を含む): 54000000

約数和(自身を除く): 33354030

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 29, 30, 38, 57, 58, 87, 95, 114, 145, 174, 190, 285, 290, 435, 551, 570, 870, 1102, 1249, 1653, 2498, 2755, 3306, 3747, 5510, 6245, 7494, 8265, 12490, 16530, 18735, 23731, 36221, 37470, 47462, 71193, 72442, 108663, 118655, 142386, 181105, 217326, 237310, 355965, 362210, 543315, 688199, 711930, 1086630, 1376398, 2064597, 3440995, 4129194, 6881990, 10322985, 20645970]

約数ペア:

[(1, 20645970), (2, 10322985), (3, 6881990), (5, 4129194), (6, 3440995), (10, 2064597), (15, 1376398), (19, 1086630), (29, 711930), (30, 688199), (38, 543315), (57, 362210), (58, 355965), (87, 237310), (95, 217326), (114, 181105), (145, 142386), (174, 118655), (190, 108663), (285, 72442), (290, 71193), (435, 47462), (551, 37470), (570, 36221), (870, 23731), (1102, 18735), (1249, 16530), (1653, 12490), (2498, 8265), (2755, 7494), (3306, 6245), (3747, 5510)]