721320120

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10949}}^1$

素因数の和:11030

約数の個数: 128

約数和(自身を含む): 2444040000

約数和(自身を除く): 1722719880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 61, 72, 90, 108, 120, 122, 135, 180, 183, 216, 244, 270, 305, 360, 366, 488, 540, 549, 610, 732, 915, 1080, 1098, 1220, 1464, 1647, 1830, 2196, 2440, 2745, 3294, 3660, 4392, 5490, 6588, 7320, 8235, 10949, 10980, 13176, 16470, 21898, 21960, 32847, 32940, 43796, 54745, 65694, 65880, 87592, 98541, 109490, 131388, 164235, 197082, 218980, 262776, 295623, 328470, 394164, 437960, 492705, 591246, 656940, 667889, 788328, 985410, 1182492, 1313880, 1335778, 1478115, 1970820, 2003667, 2364984, 2671556, 2956230, 3339445, 3941640, 4007334, 5343112, 5912460, 6011001, 6678890, 8014668, 10018335, 11824920, 12022002, 13357780, 16029336, 18033003, 20036670, 24044004, 26715560, 30055005, 36066006, 40073340, 48088008, 60110010, 72132012, 80146680, 90165015, 120220020, 144264024, 180330030, 240440040, 360660060, 721320120]

約数ペア:

[(1, 721320120), (2, 360660060), (3, 240440040), (4, 180330030), (5, 144264024), (6, 120220020), (8, 90165015), (9, 80146680), (10, 72132012), (12, 60110010), (15, 48088008), (18, 40073340), (20, 36066006), (24, 30055005), (27, 26715560), (30, 24044004), (36, 20036670), (40, 18033003), (45, 16029336), (54, 13357780), (60, 12022002), (61, 11824920), (72, 10018335), (90, 8014668), (108, 6678890), (120, 6011001), (122, 5912460), (135, 5343112), (180, 4007334), (183, 3941640), (216, 3339445), (244, 2956230), (270, 2671556), (305, 2364984), (360, 2003667), (366, 1970820), (488, 1478115), (540, 1335778), (549, 1313880), (610, 1182492), (732, 985410), (915, 788328), (1080, 667889), (1098, 656940), (1220, 591246), (1464, 492705), (1647, 437960), (1830, 394164), (2196, 328470), (2440, 295623), (2745, 262776), (3294, 218980), (3660, 197082), (4392, 164235), (5490, 131388), (6588, 109490), (7320, 98541), (8235, 87592), (10949, 65880), (10980, 65694), (13176, 54745), (16470, 43796), (21898, 32940), (21960, 32847)]