20958210

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{853}}^1$

素因数の和:889

約数の個数: 128

約数和(自身を含む): 68866560

約数和(自身を除く): 47908350

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 27, 30, 35, 39, 42, 45, 54, 63, 65, 70, 78, 90, 91, 105, 117, 126, 130, 135, 182, 189, 195, 210, 234, 270, 273, 315, 351, 378, 390, 455, 546, 585, 630, 702, 819, 853, 910, 945, 1170, 1365, 1638, 1706, 1755, 1890, 2457, 2559, 2730, 3510, 4095, 4265, 4914, 5118, 5971, 7677, 8190, 8530, 11089, 11942, 12285, 12795, 15354, 17913, 22178, 23031, 24570, 25590, 29855, 33267, 35826, 38385, 46062, 53739, 55445, 59710, 66534, 76770, 77623, 89565, 99801, 107478, 110890, 115155, 155246, 161217, 166335, 179130, 199602, 230310, 232869, 268695, 299403, 322434, 332670, 388115, 465738, 499005, 537390, 598806, 698607, 776230, 806085, 998010, 1164345, 1397214, 1497015, 1612170, 2095821, 2328690, 2994030, 3493035, 4191642, 6986070, 10479105, 20958210]

約数ペア:

[(1, 20958210), (2, 10479105), (3, 6986070), (5, 4191642), (6, 3493035), (7, 2994030), (9, 2328690), (10, 2095821), (13, 1612170), (14, 1497015), (15, 1397214), (18, 1164345), (21, 998010), (26, 806085), (27, 776230), (30, 698607), (35, 598806), (39, 537390), (42, 499005), (45, 465738), (54, 388115), (63, 332670), (65, 322434), (70, 299403), (78, 268695), (90, 232869), (91, 230310), (105, 199602), (117, 179130), (126, 166335), (130, 161217), (135, 155246), (182, 115155), (189, 110890), (195, 107478), (210, 99801), (234, 89565), (270, 77623), (273, 76770), (315, 66534), (351, 59710), (378, 55445), (390, 53739), (455, 46062), (546, 38385), (585, 35826), (630, 33267), (702, 29855), (819, 25590), (853, 24570), (910, 23031), (945, 22178), (1170, 17913), (1365, 15354), (1638, 12795), (1706, 12285), (1755, 11942), (1890, 11089), (2457, 8530), (2559, 8190), (2730, 7677), (3510, 5971), (4095, 5118), (4265, 4914)]