179390020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:269

約数の個数: 96

約数和(自身を含む): 412473600

約数和(自身を除く): 233083580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 71, 76, 95, 109, 122, 142, 190, 218, 244, 284, 305, 355, 380, 436, 545, 610, 710, 1090, 1159, 1220, 1349, 1420, 2071, 2180, 2318, 2698, 4142, 4331, 4636, 5396, 5795, 6649, 6745, 7739, 8284, 8662, 10355, 11590, 13298, 13490, 15478, 17324, 20710, 21655, 23180, 26596, 26980, 30956, 33245, 38695, 41420, 43310, 66490, 77390, 82289, 86620, 126331, 132980, 147041, 154780, 164578, 252662, 294082, 329156, 411445, 472079, 505324, 588164, 631655, 735205, 822890, 944158, 1263310, 1470410, 1645780, 1888316, 2360395, 2526620, 2940820, 4720790, 8969501, 9441580, 17939002, 35878004, 44847505, 89695010, 179390020]

約数ペア:

[(1, 179390020), (2, 89695010), (4, 44847505), (5, 35878004), (10, 17939002), (19, 9441580), (20, 8969501), (38, 4720790), (61, 2940820), (71, 2526620), (76, 2360395), (95, 1888316), (109, 1645780), (122, 1470410), (142, 1263310), (190, 944158), (218, 822890), (244, 735205), (284, 631655), (305, 588164), (355, 505324), (380, 472079), (436, 411445), (545, 329156), (610, 294082), (710, 252662), (1090, 164578), (1159, 154780), (1220, 147041), (1349, 132980), (1420, 126331), (2071, 86620), (2180, 82289), (2318, 77390), (2698, 66490), (4142, 43310), (4331, 41420), (4636, 38695), (5396, 33245), (5795, 30956), (6649, 26980), (6745, 26596), (7739, 23180), (8284, 21655), (8662, 20710), (10355, 17324), (11590, 15478), (13298, 13490)]