512172700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:308

約数の個数: 144

約数和(自身を含む): 1259919360

約数和(自身を除く): 747746660

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 71, 100, 124, 130, 142, 155, 179, 260, 284, 310, 325, 355, 358, 403, 620, 650, 710, 716, 775, 806, 895, 923, 1300, 1420, 1550, 1612, 1775, 1790, 1846, 2015, 2201, 2327, 3100, 3550, 3580, 3692, 4030, 4402, 4475, 4615, 4654, 5549, 7100, 8060, 8804, 8950, 9230, 9308, 10075, 11005, 11098, 11635, 12709, 17900, 18460, 20150, 22010, 22196, 23075, 23270, 25418, 27745, 28613, 40300, 44020, 46150, 46540, 50836, 55025, 55490, 57226, 58175, 63545, 72137, 92300, 110050, 110980, 114452, 116350, 127090, 138725, 143065, 144274, 165217, 220100, 232700, 254180, 277450, 286130, 288548, 317725, 330434, 360685, 393979, 554900, 572260, 635450, 660868, 715325, 721370, 787958, 826085, 1270900, 1430650, 1442740, 1575916, 1652170, 1803425, 1969895, 2861300, 3304340, 3606850, 3939790, 4130425, 5121727, 7213700, 7879580, 8260850, 9849475, 10243454, 16521700, 19698950, 20486908, 25608635, 39397900, 51217270, 102434540, 128043175, 256086350, 512172700]

約数ペア:

[(1, 512172700), (2, 256086350), (4, 128043175), (5, 102434540), (10, 51217270), (13, 39397900), (20, 25608635), (25, 20486908), (26, 19698950), (31, 16521700), (50, 10243454), (52, 9849475), (62, 8260850), (65, 7879580), (71, 7213700), (100, 5121727), (124, 4130425), (130, 3939790), (142, 3606850), (155, 3304340), (179, 2861300), (260, 1969895), (284, 1803425), (310, 1652170), (325, 1575916), (355, 1442740), (358, 1430650), (403, 1270900), (620, 826085), (650, 787958), (710, 721370), (716, 715325), (775, 660868), (806, 635450), (895, 572260), (923, 554900), (1300, 393979), (1420, 360685), (1550, 330434), (1612, 317725), (1775, 288548), (1790, 286130), (1846, 277450), (2015, 254180), (2201, 232700), (2327, 220100), (3100, 165217), (3550, 144274), (3580, 143065), (3692, 138725), (4030, 127090), (4402, 116350), (4475, 114452), (4615, 110980), (4654, 110050), (5549, 92300), (7100, 72137), (8060, 63545), (8804, 58175), (8950, 57226), (9230, 55490), (9308, 55025), (10075, 50836), (11005, 46540), (11098, 46150), (11635, 44020), (12709, 40300), (17900, 28613), (18460, 27745), (20150, 25418), (22010, 23270), (22196, 23075)]