1999804730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{421}}^1$

素因数の和:676

約数の個数: 128

約数和(自身を含む): 4666982400

約数和(自身を除く): 2667177670

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 31, 35, 55, 62, 70, 77, 110, 154, 155, 199, 217, 310, 341, 385, 398, 421, 434, 682, 770, 842, 995, 1085, 1393, 1705, 1990, 2105, 2170, 2189, 2387, 2786, 2947, 3410, 4210, 4378, 4631, 4774, 5894, 6169, 6965, 9262, 10945, 11935, 12338, 13051, 13930, 14735, 15323, 21890, 23155, 23870, 26102, 29470, 30646, 30845, 32417, 43183, 46310, 61690, 64834, 65255, 67859, 76615, 83779, 86366, 91357, 130510, 135718, 143561, 153230, 162085, 167558, 182714, 215915, 287122, 324170, 339295, 418895, 431830, 456785, 475013, 586453, 678590, 717805, 837790, 913570, 921569, 950026, 1004927, 1172906, 1435610, 1843138, 2009854, 2375065, 2597149, 2932265, 4607845, 4750130, 5024635, 5194298, 5864530, 6450983, 9215690, 10049270, 12901966, 12985745, 18180043, 25971490, 28568639, 32254915, 36360086, 57137278, 64509830, 90900215, 142843195, 181800430, 199980473, 285686390, 399960946, 999902365, 1999804730]

約数ペア:

[(1, 1999804730), (2, 999902365), (5, 399960946), (7, 285686390), (10, 199980473), (11, 181800430), (14, 142843195), (22, 90900215), (31, 64509830), (35, 57137278), (55, 36360086), (62, 32254915), (70, 28568639), (77, 25971490), (110, 18180043), (154, 12985745), (155, 12901966), (199, 10049270), (217, 9215690), (310, 6450983), (341, 5864530), (385, 5194298), (398, 5024635), (421, 4750130), (434, 4607845), (682, 2932265), (770, 2597149), (842, 2375065), (995, 2009854), (1085, 1843138), (1393, 1435610), (1705, 1172906), (1990, 1004927), (2105, 950026), (2170, 921569), (2189, 913570), (2387, 837790), (2786, 717805), (2947, 678590), (3410, 586453), (4210, 475013), (4378, 456785), (4631, 431830), (4774, 418895), (5894, 339295), (6169, 324170), (6965, 287122), (9262, 215915), (10945, 182714), (11935, 167558), (12338, 162085), (13051, 153230), (13930, 143561), (14735, 135718), (15323, 130510), (21890, 91357), (23155, 86366), (23870, 83779), (26102, 76615), (29470, 67859), (30646, 65255), (30845, 64834), (32417, 61690), (43183, 46310)]