1285321690

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{4643}}^1$

素因数の和:4747

約数の個数: 64

約数和(自身を含む): 2567946240

約数和(自身を除く): 1282624550

約数列:

[1, 2, 5, 10, 19, 31, 38, 47, 62, 94, 95, 155, 190, 235, 310, 470, 589, 893, 1178, 1457, 1786, 2914, 2945, 4465, 4643, 5890, 7285, 8930, 9286, 14570, 23215, 27683, 46430, 55366, 88217, 138415, 143933, 176434, 218221, 276830, 287866, 436442, 441085, 719665, 882170, 1091105, 1439330, 2182210, 2734727, 4146199, 5469454, 6764851, 8292398, 13529702, 13673635, 20730995, 27347270, 33824255, 41461990, 67648510, 128532169, 257064338, 642660845, 1285321690]

約数ペア:

[(1, 1285321690), (2, 642660845), (5, 257064338), (10, 128532169), (19, 67648510), (31, 41461990), (38, 33824255), (47, 27347270), (62, 20730995), (94, 13673635), (95, 13529702), (155, 8292398), (190, 6764851), (235, 5469454), (310, 4146199), (470, 2734727), (589, 2182210), (893, 1439330), (1178, 1091105), (1457, 882170), (1786, 719665), (2914, 441085), (2945, 436442), (4465, 287866), (4643, 276830), (5890, 218221), (7285, 176434), (8930, 143933), (9286, 138415), (14570, 88217), (23215, 55366), (27683, 46430)]