30017920

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:156

約数の個数: 128

約数和(自身を含む): 79315200

約数和(自身を除く): 49297280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 64, 68, 80, 85, 89, 124, 128, 136, 155, 160, 170, 178, 248, 272, 310, 320, 340, 356, 445, 496, 527, 544, 620, 640, 680, 712, 890, 992, 1054, 1088, 1240, 1360, 1424, 1513, 1780, 1984, 2108, 2176, 2480, 2635, 2720, 2759, 2848, 3026, 3560, 3968, 4216, 4960, 5270, 5440, 5518, 5696, 6052, 7120, 7565, 8432, 9920, 10540, 10880, 11036, 11392, 12104, 13795, 14240, 15130, 16864, 19840, 21080, 22072, 24208, 27590, 28480, 30260, 33728, 42160, 44144, 46903, 48416, 55180, 56960, 60520, 67456, 84320, 88288, 93806, 96832, 110360, 121040, 168640, 176576, 187612, 193664, 220720, 234515, 242080, 337280, 353152, 375224, 441440, 469030, 484160, 750448, 882880, 938060, 968320, 1500896, 1765760, 1876120, 3001792, 3752240, 6003584, 7504480, 15008960, 30017920]

約数ペア:

[(1, 30017920), (2, 15008960), (4, 7504480), (5, 6003584), (8, 3752240), (10, 3001792), (16, 1876120), (17, 1765760), (20, 1500896), (31, 968320), (32, 938060), (34, 882880), (40, 750448), (62, 484160), (64, 469030), (68, 441440), (80, 375224), (85, 353152), (89, 337280), (124, 242080), (128, 234515), (136, 220720), (155, 193664), (160, 187612), (170, 176576), (178, 168640), (248, 121040), (272, 110360), (310, 96832), (320, 93806), (340, 88288), (356, 84320), (445, 67456), (496, 60520), (527, 56960), (544, 55180), (620, 48416), (640, 46903), (680, 44144), (712, 42160), (890, 33728), (992, 30260), (1054, 28480), (1088, 27590), (1240, 24208), (1360, 22072), (1424, 21080), (1513, 19840), (1780, 16864), (1984, 15130), (2108, 14240), (2176, 13795), (2480, 12104), (2635, 11392), (2720, 11036), (2759, 10880), (2848, 10540), (3026, 9920), (3560, 8432), (3968, 7565), (4216, 7120), (4960, 6052), (5270, 5696), (5440, 5518)]