2440398940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{40823}}^1$

素因数の和:40907

約数の個数: 72

約数和(自身を含む): 6059424672

約数和(自身を除く): 3619025732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 61, 70, 98, 122, 140, 196, 244, 245, 305, 427, 490, 610, 854, 980, 1220, 1708, 2135, 2989, 4270, 5978, 8540, 11956, 14945, 29890, 40823, 59780, 81646, 163292, 204115, 285761, 408230, 571522, 816460, 1143044, 1428805, 2000327, 2490203, 2857610, 4000654, 4980406, 5715220, 8001308, 9960812, 10001635, 12451015, 17431421, 20003270, 24902030, 34862842, 40006540, 49804060, 69725684, 87157105, 122019947, 174314210, 244039894, 348628420, 488079788, 610099735, 1220199470, 2440398940]

約数ペア:

[(1, 2440398940), (2, 1220199470), (4, 610099735), (5, 488079788), (7, 348628420), (10, 244039894), (14, 174314210), (20, 122019947), (28, 87157105), (35, 69725684), (49, 49804060), (61, 40006540), (70, 34862842), (98, 24902030), (122, 20003270), (140, 17431421), (196, 12451015), (244, 10001635), (245, 9960812), (305, 8001308), (427, 5715220), (490, 4980406), (610, 4000654), (854, 2857610), (980, 2490203), (1220, 2000327), (1708, 1428805), (2135, 1143044), (2989, 816460), (4270, 571522), (5978, 408230), (8540, 285761), (11956, 204115), (14945, 163292), (29890, 81646), (40823, 59780)]