164121720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3203}}^1$

素因数の和:3285

約数の個数: 128

約数和(自身を含む): 572106240

約数和(自身を除く): 407984520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 61, 70, 84, 105, 120, 122, 140, 168, 183, 210, 244, 280, 305, 366, 420, 427, 488, 610, 732, 840, 854, 915, 1220, 1281, 1464, 1708, 1830, 2135, 2440, 2562, 3203, 3416, 3660, 4270, 5124, 6405, 6406, 7320, 8540, 9609, 10248, 12810, 12812, 16015, 17080, 19218, 22421, 25620, 25624, 32030, 38436, 44842, 48045, 51240, 64060, 67263, 76872, 89684, 96090, 112105, 128120, 134526, 179368, 192180, 195383, 224210, 269052, 336315, 384360, 390766, 448420, 538104, 586149, 672630, 781532, 896840, 976915, 1172298, 1345260, 1367681, 1563064, 1953830, 2344596, 2690520, 2735362, 2930745, 3907660, 4103043, 4689192, 5470724, 5861490, 6838405, 7815320, 8206086, 10941448, 11722980, 13676810, 16412172, 20515215, 23445960, 27353620, 32824344, 41030430, 54707240, 82060860, 164121720]

約数ペア:

[(1, 164121720), (2, 82060860), (3, 54707240), (4, 41030430), (5, 32824344), (6, 27353620), (7, 23445960), (8, 20515215), (10, 16412172), (12, 13676810), (14, 11722980), (15, 10941448), (20, 8206086), (21, 7815320), (24, 6838405), (28, 5861490), (30, 5470724), (35, 4689192), (40, 4103043), (42, 3907660), (56, 2930745), (60, 2735362), (61, 2690520), (70, 2344596), (84, 1953830), (105, 1563064), (120, 1367681), (122, 1345260), (140, 1172298), (168, 976915), (183, 896840), (210, 781532), (244, 672630), (280, 586149), (305, 538104), (366, 448420), (420, 390766), (427, 384360), (488, 336315), (610, 269052), (732, 224210), (840, 195383), (854, 192180), (915, 179368), (1220, 134526), (1281, 128120), (1464, 112105), (1708, 96090), (1830, 89684), (2135, 76872), (2440, 67263), (2562, 64060), (3203, 51240), (3416, 48045), (3660, 44842), (4270, 38436), (5124, 32030), (6405, 25624), (6406, 25620), (7320, 22421), (8540, 19218), (9609, 17080), (10248, 16015), (12810, 12812)]