390173440

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{9833}}^1$

素因数の和:9885

約数の個数: 72

約数和(自身を含む): 964833408

約数和(自身を除く): 574659968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9833, 9920, 19666, 19840, 39332, 39680, 49165, 78664, 98330, 157328, 196660, 304823, 314656, 393320, 609646, 629312, 786640, 1219292, 1258624, 1524115, 1573280, 2438584, 2517248, 3048230, 3146560, 4877168, 6096460, 6293120, 9754336, 12192920, 12586240, 19508672, 24385840, 39017344, 48771680, 78034688, 97543360, 195086720, 390173440]

約数ペア:

[(1, 390173440), (2, 195086720), (4, 97543360), (5, 78034688), (8, 48771680), (10, 39017344), (16, 24385840), (20, 19508672), (31, 12586240), (32, 12192920), (40, 9754336), (62, 6293120), (64, 6096460), (80, 4877168), (124, 3146560), (128, 3048230), (155, 2517248), (160, 2438584), (248, 1573280), (256, 1524115), (310, 1258624), (320, 1219292), (496, 786640), (620, 629312), (640, 609646), (992, 393320), (1240, 314656), (1280, 304823), (1984, 196660), (2480, 157328), (3968, 98330), (4960, 78664), (7936, 49165), (9833, 39680), (9920, 39332), (19666, 19840)]